Yemi is a forward from London who was originally on schoolboy terms with Millwall. Yemi came to Norwich on trial and was then offered YTS terms. "Another winger with lots of pace, he has great enthusiasm for the game but it is too early to tell whether he has the necessary talent". (Pink Un 12th September 1998).

He was released at the end of the 1998/99 season and joined Southend on 2nd June 1999. He made his first team debut on the 7th August 1999 in the 2-1 defeat of Plymouth. Yemi was transferlisted towards the end of November 2000 having made only 3 appearances for The Shrimpers in 1999/2000. Yemi left Southend in January 2001, his contract cancelled by mutual consent and was replaced by Tes Bramble.

Yemi initially joined Chesham of the Ryman League but moved to their rivals Harrow Borough in the spring of 2001. After a spell with Dulwich Hamlet, Yemi joined Enfield and came on as substitute in their 22nd September clash with Maidenhead. By the end of October, Yemi had moved again, ironically joining Maidenhead. Yemi moved to join Welling on trial in January 2002

In February 2003, the Non-League Paper website reported that Yemi had signed for Ford United, who had also recently acquired fellow former Norwich youth Julian Edwards. However this stay was not for long as he was released during the first few days of March 2003. By 16th March, he had found a new club, making his debut alongisde Victor Fayenwo, for Hampton & Richmond Borough against Hitchin Town in a Ryman League clash.