Football in Brief: Season over for Frimpong; Stoke appeal over Huth red card; Plymouth probe racism allegation

The Wolves midfielder Emmanuel Frimpong is returning to Arsenal after his loan spell with Wolverhampton Wanderers was cut short by a serious knee injury that has ended his season.

The 20-year-old ruptured the anterior cruciate ligament in his right knee in Saturday's 2-1 win at Queen's Park Rangers. The former England youth international Frimpong suffered the same injury to his left knee in 2010.

Stoke appeal over Huth red card

Stoke City have lodged an appeal to the Football Association against Robert Huth's red card in Saturday's Premier League defeat by Sunderland.

The defender received a straight red from the referee Martin Atkinson after a tackle on David Meyler. The Stoke manager, Tony Pulis, suggested Meyler had play-acted.

Plymouth probe racism allegation

Plymouth have launched an investigation into allegations a Southend player was racially abused by a spectator during the 2-2 draw between the sides at Home Park on Saturday.

A Plymouth statement said: "We have received a number of complaints relating to crowd behaviour during Saturday's game. We are conducting a thorough investigation."