Who knows with Rafa but I reckon, Kuyt, Lucas, Masch, Xabi and Riera will be the midfield.
Just like I wouldn't worry about Liverpool in this type of game, I wouldn't worry about Lucas either. Just like the team itself, I worry about him against the likes of Stoke and Everton, them small physical clubs.
Cliche, but there's truth in it.... Give the lad a bit of time and space, play football against him, and he's decent. Throw him in the trenches on a wet Wednesday night and he struggles.