1950–1957 Foulkes was discovered by Manchester United while he was playing for the Whiston Boys club as an 18-year-old. He joined the club in March 1950 and played in junior ranks of the club before he turned professional in August 1951. He made his professional debut in the
1952–53 season in a First Division match against
Liverpool on 13 December 1952 at the age of 20. United won the match 2–1. He also played 2 games for the
England Under-23 team. Foulkes scored his first of only nine goals for the club during the
1953–54 season against
Newcastle United in a First Division match on 2 January 1954 at
St James' Park. The goal was scored from near the halfway line, United won the Championship in the 1955–56 season and thus became eligible to play in the European Cup in the following season,
1956–57. Despite objections from
the Football League, United became England's first representatives in the European Cup. In the second match of the Cup, United demolished
Anderlecht 10–0, although Foulkes did not score any goals. The result continues to be United's record victory in a European match. In that season, Foulkes helped United to the semi-finals of the European Cup, losing to
Real Madrid 5–3 on aggregate after losing 3–1 at the
Santiago Bernabéu Stadium and drawing 2–2 in the return leg at
Old Trafford. United also reached the
FA Cup final, losing 2–1 to
Aston Villa, and successfully defended their Championship title that season.
Munich air disaster As winners of
the Football League in 1956–57, United once again represented England in the European Cup in
1957–58. In the second leg of the quarter-finals against
Red Star Belgrade in
Yugoslavia, United drew 3–3, winning 5–4 on aggregate. After the match, the team had a reception, then travelled to the British Embassy where each player was given a bottle of gin. On the return journey to
Manchester on 6 February 1958, the
British European Airways aircraft that the team was on stopped at
Munich to refuel. Because of boost surging, takeoff was aborted twice. The pilot returned to the terminal, and after a while, it was announced that one more attempt to take off would be made. At that time, Foulkes had been running a card school with
Kenny Morgans,
David Pegg,
Albert Scanlon,
Roger Byrne and
Liam Whelan in the middle of the plane. When he heard the announcement, he started to worry for his safety. In a 1998 interview with Carling-Net, he said of the announcement, "When they said that you didn't have to be a genius to know that this was going to be a bit dicey." In
1966–67, Foulkes helped United win the Championship again, completing his haul of four Championship medals, more than any other United player of his era, and indeed any other player at the club for the next 32 years. He had also made 3 appearances as a substitute in the 1968–69 season in the First Division. He also started in every single game United had played in the seasons 1957–58, 1959–60, 1963–64 and 1964–65. He served United in the First Division for 18 seasons, most of them as a regular player, and was the longest-serving player at the club at the time of his final game. He scored a total of nine goals for United, the first in a 2–1 league win at
Newcastle United on 2 January 1954, and the last on 15 May 1968 in the victorious European Cup semi-final second leg tie in
Madrid. After retirement, he stayed at Old Trafford as a youth team coach from 1970 to 1975, when he finally left United after 25 years of unbroken service. ==Post-Manchester United==