Swansea City have filed a formal complaint complaining about the officiating in the eighth round of the English Premier League clash against Stoke City. <br /><br />During the encounter at the Britannia Stadium on Sunday, there was an incident involving Super Eagles striker Victor Moses just before the end of the first half.<br /><br />In the 43rd minute, Referee Michael Oliver awarded a penalty to Stoke City after the Chelsea loanee was challenged by Angel Rangel, which was seriously disputed by manager Garry Monk.<br /><br /><i>Sky Sports</i> is reporting that Swansea City sent a letter of complaint which was received by the Premier League on Monday morning, and Mike Riley, the Referees chief, will have a chat with Monk in the coming days on the incident.<br /><br />Stoke City won the tie 2&nbsp; - 1, with Jonathan Walters netting the match winner in the 76th minute.<br /><br /><br /><br /><br />