Roberto Martinez: 'Steven Pienaar out for a little longer'

Everton manager Roberto Martinez has revealed that Steven Pienaar will be sidelined for "a little longer" with a soft tissue problem.

The South African midfielder suffered the injury ahead of the Toffees' 1-0 win over Chelsea in the Premier League on Saturday.

"I think Steven Pienaar is going to be a little bit longer - it's a grade one soft tissue problem," Martinez told the club's official website.

Everton continue their league campaign on Saturday when they face West Ham United at Upton Park.