The 21-year-old has made an immediate impact since his switch from West Ham, bagging four goals in three starts to add to his 15 in Division One with the Hammers.
He was there when it mattered against Leicester City on Sunday, crashing home a late equaliser after Foxes had turned a 3-1 deficit into a 4-3 lead.
Les - on target for Foxes as the game ended 4-4 - spent the last six months of last season with Jermain at Upton Park and
"Jermain's an exceptional talent and if he goes to the European Championships England will be all the better for it," said Les, capped 17 times by England.
"His goalscoring record in the Premier League is better than some of the strikers in there at the moment so he must be disappointed that he hasn't had an opportunity on the biggest stage.
"His second goal against us summed him up - give him a chance and he'll take it.
"I fact, I saw a lot of him last season and it's more a case of give him half-a-chance and he'll take it.
"He keeps improving all the time and I'm sure he'll continue to do so. He's got some great players around him and I'm sure he can only go from strength to strength at Spurs."
Les Ferdinand is in little doubt that Jermain Defoe should be on his way to Euro 2004 with England this summer.