Munster Stringer made his Munster debut against
Ulster on 3 October 1998, in an Irish Inter-Provincial Championship game. He made his
Heineken Cup debut for Munster against
Perpignan on 10 October 1998. Stringer was Munster's first-choice scrum-half for the
2000 Heineken Cup Final against
Northampton Saints, a game which Munster lost 8–9. Stringer was again at scrum-half for Munster in the
2002 Heineken Cup Final against
Leicester Tigers, which Leicester won 15–9. This game also involved the infamous 'Hand of Back' incident, in which
Neil Back, the Leicester flanker, knocked the ball out of Stringer's hands during his put-in to a Munster scrum near the Leicester try-line, ultimately denying Munster any chance of a comeback Stringer's first silverware with Munster came in February 2003, when they secured the
2002–03 Celtic League. He was also Munster's scrum-half when they beat
Llanelli Scarlets to win the Celtic Cup in May 2005. Stringer played a key role for Munster during the
2005–06 Heineken Cup, helping the team reach their third final. Before the
2006 Heineken Cup Final, Stringer was criticised for not scoring enough tries. During the final, he saw that
Biarritz's scrum-half,
Dimitri Yachvili, was out of position, and Stringer quickly scored Munster's second try [https://www.youtube.com/watch?v=dl5JDRMKhA8, helping to secure a 23–19 win, and Munster's first European Cup. During the
2007–08 Heineken Cup, Stringer lost his place in the Munster team to
Tomás O'Leary. He was on the bench for Munster's 16–13 win over
Toulouse in the
2008 Heineken Cup Final, but did not come on. Stringer was part of the Munster team that won the
2008–09 Celtic League, and was on the bench when Munster won the
2011 Celtic League Grand Final, beating rivals and newly crowned Heineken Cup Champions
Leinster 19–9 in
Thomond Park. During the
2010–11 season, Stringer also became Munster's most capped player ever, overtaking the record previously held by
Alan Quinlan. He achieved the feat when he came on as a substitute in Munster's Celtic League victory against Leinster on 2 April 2011. On 27 March 2012, while still on loan with Newcastle, Stringer signed a deal to extend his Munster contract by one year.
Loan to Saracens On 3 December 2011, it was announced that Stringer would join
Aviva Premiership side
Saracens on a three-month loan. He officially joined up with Saracens on 5 December 2011. He made his debut for Saracens in their
Heineken Cup pool fixture against
Ospreys on 10 December 2011. Stringer made his first appearance in the
Aviva Premiership for Saracens against
Harlequins on 27 December 2011. He scored his first try for the club in the
Anglo-Welsh Cup game against
Worcester Warriors on 29 January 2012. Stringer's last game for Saracens was against
Northampton Saints on 4 March 2012.
Loan to Newcastle Munster confirmed on 23 February 2012 that Stringer would join another
Aviva Premiership side,
Newcastle Falcons, on loan immediately after the conclusion of his loan at Saracens, and would be there until the end of the 2011–12 season. He joined up with the club officially on 13 March 2012. Stringer made his debut for Newcastle on 23 March 2012, against
Worcester Warriors in the Aviva Premiership. He scored his first try for Newcastle in his last game for the club, during the relegation-decider against
London Wasps, which Newcastle won 14–10.
Bath It was announced on 21 January 2013 that Stringer would return to the
Aviva Premiership for a third time, this time on loan with
Bath Rugby as cover for injured first-choice scrum-half
Michael Claassens. He scored two tries on his debut with Bath. Stringer agreed an extension to his loan deal with Bath in March 2013, which saw him stay with the side until the end of the 2012–13 season. It was announced on 9 April 2013 that Stringer had signed a one-year contract with Bath, which saw him join the club as a full-time player from the 2013–14 season. Stringer signed a new one-year contract with Bath in March 2014.
Sale Sharks On 19 May 2015, it was announced Stringer had signed a one-year deal with
Sale Sharks. In February 2016, Stringer signed a one-year contract extension with Sale. In April 2016, Stringer was named the Sale Sharks Player of the Year for the
2015–16 season. At the end of the 2016–17 season, Sale announced that Stringer would be leaving the club, while Stringer himself declared his intention to continue playing professional rugby.
Worcester Warriors On 20 July 2017,
Worcester Warriors announced that they had signed Stringer on a six-month contract to cover
Francois Hougaard while he is on international duty. The contract meant Stringer would be playing professional rugby as a 40-year-old and would join his longtime Munster and Ireland teammate
Donncha O'Callaghan at the club. ==International career==