Chelsea Academy Having played for local youth sides Cuffy Chiefs and Hart Boys, Etheridge signed for
Isthmian League Division One South club
Leatherhead in September 2008 on loan for the 2008–09 season. During his loan spell, he received the first red card of his career, being sent off for dissent during a 2–1 defeat to
Sittingbourne in a preliminary round of the
FA Trophy. In September 2009, Etheridge underwent surgery on both knees after suffering from
tendinitis. He was expected to be out for the entire
2009–10 season but returned in January 2010, eventually making nine appearances for the reserves. By the end of the season he signed a new one-year deal, keeping him at Fulham until the summer of 2011, attributing his contract extension to his quick recovery. Etheridge received his first senior team call-up on 11 September 2010, when he was named on the
substitutes' bench as cover for
Mark Schwarzer in a home game against
Wolverhampton Wanderers due to an injury to regular second-choice goalkeeper
David Stockdale. In March 2011, Etheridge joined
League One club
Charlton Athletic on loan, but was recalled six days later without playing for them. Etheridge signed a new contract in May that would extend his stay at
Craven Cottage until the summer of 2013. He made his first senior appearance for Fulham against
Odense Boldklub in the
2011–12 UEFA Europa League on 14 December. On 23 March 2012 upon his return to Fulham after completing his international duties, it was announced that Etheridge would be out for the rest of the season due to a wrist injury that was sustained in the
2012 AFC Challenge Cup. He recovered quickly and on 9 May he has been able to play in the development squad's last game of the season against the reserves of
West Bromwich Albion. He joined
League Two club
Bristol Rovers on an initial one-month loan on 20 September 2012. He made his first
Football League appearance for Rovers against
Fleetwood Town on 22 September, which was his and Rovers' first clean sheet of
2012–13 season. On 21 November, Fulham confirmed that Etheridge had been recalled from his loan at Bristol Rovers. Etheridge signed a one-year extension to his Fulham contract on 8 May 2013, with the option of a further year extension. On 22 November 2013, he joined League One club
Crewe Alexandra on loan until 1 January 2014. He rejoined the club on 25 February 2014 on loan until 13 April, but was recalled on 4 April by Fulham. At the end of the
2013–14 season, he was released by Fulham.
Oldham Athletic and return to Charlton Athletic Following his release from Fulham, Etheridge used his own money to train with Charlton, one of his former loan clubs, where he knew the goalkeeping coach. Struggling to make a living, he was set to return to the Philippines and had already sold his house and cars before joining League One club
Oldham Athletic on a two-month deal on 30 October 2014. During his time with the club, he lived at his friend's house, sleeping on the sofa, later describing his situation as "what you've got to do to get by." Etheridge later reminisced on his circumstances, stating that he questioned whether he would ever play football again. He made one appearance for Oldham during his time with the club during a
Football League Trophy match against
Preston North End. He made his league debut for Charlton on 26 December, in a 1–1 draw against
Cardiff City. Manager
Bob Peeters had opted to play Etheridge, Charlton's third-choice goalkeeper, ahead of second-choice
Nick Pope whose performances in previous games Peeters had described as "a bit unlucky". After the loan, he signed a signed a short-term contract on 5 January 2015 with Charlton until the end of the
2014–15 season. He was released on 12 May 2015 following the end of his contract.
Walsall Etheridge joined League One club
Walsall on 2 July 2015 after agreeing a two-year deal. Signed to compete with
Craig MacGillivray for the first-choice goalkeeper spot, he made his debut for the club on the opening day of the
2015–16 season in a 1–1 draw with his former club Oldham. Etheridge credits Walsall's goalkeeper coach
Neil Cutler with improving his ability, commenting that Cutler had "taken me to another level." In his first season, he made 50 appearances in all competitions, helping the side reach the
League One play-offs where they suffered defeat in
the semi-final to
Barnsley. He kept 12 clean sheets in 44 appearances as the club finished the season in 14th place, missing the last five matches of the season due to injury. In January 2017, Cardiff City approached Walsall over a potential transfer but pulled out due to the asking price. He played a total of 94 matches with Walsall during his two seasons at the club.
Cardiff City 's promotion in 2018. On 30 May 2017, Etheridge signed for
Championship club
Cardiff City on a free transfer, after rejecting a new three-year contract with Walsall. Etheridge made his debut for the club on the opening day of the 2017–18 season, keeping a clean sheet during a 1–0 victory over
Burton Albion. Etheridge performed well enough playing for Cardiff that fellow goalkeeper
Lee Camp was loaned to
Sunderland after recovering from injury. He helped his club earn promotion to the
Premier League, featuring in 45 out of 46 league matches of the
2017–18 Championship season, keeping 19 clean sheets and conceding 37 goals. Following the club's promotion, Etheridge was rewarded with a new three-year contract by the club. On 11 August 2018, he became the first player from the Philippines and Southeast Asia to play in the Premier League, in a 2–0 loss to
AFC Bournemouth, during which he saved a
penalty from
Callum Wilson. His penalty save also made him the first goalkeeper to save a penalty on his Premier League debut since
Allan McGregor for
Hull City in 2013. A week later, he saved another penalty in injury time, from
Newcastle United's
Kenedy, to guarantee a goalless draw. Etheridge's impressive form led to him being nominated for the August
Premier League Player of the Month award. Cardiff were relegated from the Premier League after finishing in 18th position and Etheridge won the club's Player of the Year award. On the opening day of the
2019–20 season, Etheridge suffered a hamstring injury during a 3–2 loss at
Wigan Athletic, which ruled him out for two months.
Alex Smithies replaced Etheridge as Cardiff's first-choice goalkeeper for most of the season.
Birmingham City Etheridge signed a four-year contract with Championship club
Birmingham City on 11 September 2020; the fee was undisclosed. He was on the bench for the following day's match, in which the 19-year-old debutant
Zach Jeacock kept a clean sheet, and came into the starting eleven for the goalless draw at
Swansea City a week later. Amidst the
COVID-19 pandemic, Etheridge received hospital treatment in July 2021 after he contracted
COVID-19. Consequently, Etheridge had not played a single league match for Birmingham by October 2021 despite having featured in the
2021–22 EFL Cup. With
John Ruddy established as first-choice goalkeeper for the
2022–23 season, Etheridge did not make a Championship appearance until 18 April, when Ruddy was injured during the first half of the visit to
Millwall. Between them, they kept a clean sheet in a 1–0 win that ensured Birmingham's Championship status for a further season. On 18 May 2024, the club announced he would be leaving in the summer when his contract expired.
Buriram United Etheridge signed for
Thai League 1 club
Buriram United on 30 June 2024. He make his debut for the club on 10 August keeping a clean sheet in a 4–0 win against
Nongbua Pitchaya. Etheridge went on to keep 4 clean sheets in 5 matches for the club including a goalless draw in the
2024–25 AFC Champions League Elite match against Japanese club
Vissel Kobe. In his first season at the club, he went on to keep 24 clean sheet for the club in 48 appearances in all competition played. During the 2nd leg of the round of 16 tie against Australian club
Melbourne City in the
2025–26 AFC Champions League Elite on 10 March 2026, Etheridge saved two penalties in the penalties shootout which sees Buriram United advanced to the quarter-finals of the tournament. ==International career==