Chelsea defender Branislav Ivanovic has warned teammates to keep watch on Wolves midfielder Nenad Milijas.
The pair play in Serbia's national team and are good friends.
Ivanovic told chelseafc.com: "He has a very good left foot and a good shot, so he is a very good player who scores goals.
"I think he may need more time to settle in England but he will be very good. He has just arrived and it is normal to need time to play. He has played a couple of games very well and I think he can improve even more."
Milijas is yet to score for Wolves, but he was prolific at former club Red Star Belgrade, while also netting important goals for his country against France and Austria.
"I played with him for the Under 21s and through to the national team, and he is an important player for the Serbian national team," Ivanovic continued.
"We both played at Fulham on Wednesday night, he played about 60 minutes and did well. He played as a left winger, and we spoke about that, maybe we'll play one-against-one. I hope I will win, it is not his natural position but he can play there for sure."