Kaikai who is on loan to Cambridge United from Palace played for 53 minutes as the lower league side secured a memorable home FA Cup draw.
The 19 year old stood out, causing Manchester United problems with his directness and ability to run with the ball and despite his early second half substitution, Kaikai worked hard, winning one tackle and one interception.
The youngster's performance won him praise from fans, and other football supporters, who saw signs that the attacker is a good prospect.
One of the fans who took to twitter was Gareth who tweets: “Well done Sullay Kaikai, excellent game tonight” another Connor Stewart posted: ‘Good to see Sullay Kaikai play against Man U and get a draw and put in a good shift.
Already the youngster has scored in the Capital One Cup for Palace against Newcastle this season, and so far for Cambridge he has two goals and two assists in 10 games, and threatened against Manchester United.