Tottenham boss Andre Villas-Boas is wary of coming up against Everton striker Romelu Lukaku today.
The Belgian was furious with his treatment by Villas-Boas during his time at Chelsea, but the two have since buried the hatchet.
Villas-Boas has been impressed with how he has developed since his successful loan spell at West Brom last term.
"The player did extremely well last season and has continued to do well for Everton. The potential is there," Villas-Boas said.
"We all recognise he can become an influential striker in the future.
"Chelsea's standards are very, very high so the jump will be very difficult for him, but he has shown he can cope with the Premier League and it's another step up for him at Everton."
