The second Dons player to go on to full international honours, winger Leslie Smith, played for the club as a sixteen year old loanee from Brentford, arranged as a favour to Wimbledon director Mortimer Miller. Leslie helped fire the Dons to the Isthmian League title and played in the Amateur Cup final before moving on to Hayes with Mortimer and several other players the following season. Twice represented the Athenian League before returning to Brentford and signing profession forms on his seventeenth birthday.

He gained his England cap in the final pre-War international, a 2-0 victory over Romania in Bucharest on 24 May 1939, in place of the injured Stanley Matthews, and played in thirteen official wartime internationals, scoring three times, as well as two unofficial (FA XI) internationals. During the war he scored both goals when Brentford beat Portsmouth in the 1942 London Cup Final at Wembley and played as a guest for Chelsea, Leicester City, Manchester City, West Bromwich Albion and Aston Villa signing for Villa for £6,500 in October 1945. After over 200 games for the Midland club he returned to Brentford in 1952 for £3,000 but retired at the end of that season and returned to the Midlands, managing Kidderminster for a season before working for Wolves as a scout.