Reports have claimed that Chelsea are now considering strengthening the goalkeeper position at the end of this season. According to CalcioMercato, the Blues are contemplating an upgrade in the form of AC Milan and France goalkeeper Mike Maignan. Maignan has continued to perform at a top level this season for the Serie A side, with him being recognised as one of the top players in his position. Chelsea have previously been linked with his signing, however have yet to make a real move to bring him in. Last summer saw them buy two first team goalkeepers, with them preferring to go down the econom…