United were drawn against either Northampton or Derby in the fifth round draw, having handsomely won 6-0 away at Tranmere in their own fourth round game.
Rooney, who has become Derby captain since joining as a player-coach from D.C. United, scored a late penalty in the tie to seal a 4-2 victory for the Championship side.
The fifth-round tie between United and Derby at Pride Park is scheduled for Tuesday 5 March.
Wayne Rooney has lost all six games he has played against Manchester United.— Simon Stone (@sistoney67) February 4, 2020
It will not be Rooney’s first appearance against his former club since leaving, having played twice in games against United for Everton during the 2017/18 season, both of which he lost.
But it will be a special occasion nonetheless as a result of everything the 34-year-old achieved during his 13 seasons at Old Trafford.
Rooney won 12 major trophies at United, including the Champions League and five Premier League titles. One of his final acts was to break Sir Bobby Charlton’s longstanding goal record, which had stood at 249 since 1973 – Rooney extended it to 253.
After trading Everton for D.C. United in the summer of 2018, Rooney had a whirlwind 18 months in Major League Soccer, transforming the league’s worst team into playoff material.
He opted to return home to England at the end of the 2019 season after 25 goals in 52 total appearances for the Washington franchise, initially agreeing to join Derby back in August.
Rooney started the coaching side of his job for the Rams in December and was soon also registered as a player when the January transfer window opened. He has already played seven times in all competitions and has scored in each of his last three appearances.
Source : 90min