The Kuyt and Lucas arguments could go on for days. I spend most weekends last season doing it.
Kuyt isn't a winger by trade, but still does damn good there usually.
Lucas is the 2nd best DM behind Essien in the league, arguably better on occasion. The stats back this up, he completes more tackles per 90 minutes than anyone, whilst conceding hardly any fouls.
If you look at Kuks' sig video of Lucas, you'll see he has more to his game than tackling, too.