West Ham United's Matthew Upson has called for more stability in the line-up.

The Hammers defender says there has been too much chopping and changing in the early part of the season, making life very difficult and wants to see some sort of fluidity in the starting team.

"We've had four games and four different right-backs as well as three different people playing at right centre-half," Upson said.

"It's so hard to get momentum and clarity of what your job is when things change all the time.

"We need players to come in and stamp their authority on a position and make it their own.

"We're four games into the season and, hopefully, that can now happen.

"All good teams have that and in every position we need to have that stability. We must get that momentum going and stop letting in goals."