He appeared for the "Saints" in the 1979 Football League Cup final after helping the club win promotion out of the Second Division in 1977–78.

He appeared as a substitute in the 1979 League Cup final at Wembley, replacing Austin Hayes after 83 minutes; Nottingham Forest won the game 3–2.

[6] Palace were relegated in 1980–81, and Sealy followed Venables to Second Division Queens Park Rangers for a fee of £80,000 in March 1981.

[2] Sealy made his QPR debut in the 3–1 win over Derby County in March 1981 and played 63 league games, scoring 18 goals.

In February 1982, he was once more loaned out to Port Vale, once again impressing with four goals in six games; but the club could not afford to secure his services permanently, and he returned to Rangers the following month.

He then returned to London to play for Brentford in the Third Division; Steve Perryman's "Bees" missed out on the play-offs by four points in 1988–89, and Sealy moved to Bristol Rovers via Swindon Town.

After winning the division again in 2000–01, they this time accepted promotion but only managed four points from twelve games in 2001–02, but were not relegated despite finishing in last place.

Source:[9][10][11] Southampton Queens Park Rangers AFC Bournemouth Sporting CP Bristol Rovers Brentford Hong Kong FC