The Welshman has impressed for Jurgen Klopp's side in recent weeks.
The former England midfielder believes Jermain Defoe's firepower will see the Black Cats secure a priceless three points.
The previously injured duo are making a comeback for the Gunners.
The Hammers were knocked out of the FA Cup by Louis van Gaal's side on Wednesday.
Liam Bridcutt has missed Leeds United's last two matches through injury.
The former Chelsea midfielder is still to see his first minutes of the 2016 MLS campaign after picking up a calf strain during preseason.
Oumar Niasse has played 29 minutes of football for Everton this season
The midfielder moved to Newcastle United in the January transfer window.
The Gers midfielder says the club have set their sights on matching the second-tier record of 91 set by Hearts last season.
Sunderland head to Norwich City on Saturday for what could prove to be a relegation decider.