Gabby Agbonlahor has no doubt new Aston Villa teammate Yacouba Sylla is Premier League class.

Sylla arrived in January from the French Ligue 2.

"People say that he is only from the French second division, but that does not really matter. There are fifty examples of players who have worked their way up, he is good enough. He is tough as nails, he is even harder than Ron Vlaar. I am very impressed by what we have seen of Yacouba," said Agbonlahor.