Warnock impressed

       

   I remember watching when they played at Arsenal and he was the best player on the pitch by a mile - the distance he covered and he seemed to be playing in a more advanced role," he pointed out.This season has probably been another learning curve for him and hopefully he'll kick on to good things now - and with Joe Allen being injured, it gives him every opportunity to play.I've played against him and trained with him and know he's a very good player. I think the first year he came was probably a bit daunting for him in realising what Liverpool is all about and things like that, but I think he's acquitted himself well this year and been very good.Liverpool travel to Aston Villa for their Premier League game this Sunday.With Joe Allen ruled out for the rest of the season, Warnock believes Henderson could feature more for Liverpool in their remaining games.With Liverpool skipper Steven Gerrard, new signing Philippe Coutinho and midfield marshal Lucas Leiva ahead of him in the pecking order, Henderson has started just eight Premier League games and made 14 substitute appearances this season.People forget he's still young. He's 22 and still has plenty of time to be a great player for Liverpool he said.