Premier League leaders Chelsea reached the quarter-finals of the FA Cup with victory over Wolves in an entertaining tie at Molineux. Wolves, just five points above the Championship relegation zone, took a positive approach in the first half as George Saville lashed an early strike against the post, when he really should have scored. Chelsea''s defence was repeatedly tested before the visitors finally upped the tempo, forcing Wolves back and allowing Pedro to dart in and head home unmarked at the back post. Diego Costa sealed Chelsea''s place with his 16th goal of the season as he slid a low finish past Carl Ikeme.