Matt Prior has been ruled out of Sussex's clash with Warwickshire at Arundel due to injury.

The England wicketkeeper was expected to make his return to county action following the Test series with Sri Lanka in the Championship match but failed a fitness test on the morning of the game.

Luke Wells has recovered from a hip problem though to take his place in a team captained by Ed Joyce for the first time while Sussex have opted to play Ollie Rayner as a second spinner.

Joyce won the toss and elected to bat first against a Warwickshire side missing England trio Jonathan Trott, Ian Bell and Chris Woakes.