straight to your inbox every day, freeManchester United are considering allowing Dean Henderson to leave on loan in the January transfer window - according to reports.The 23-year-old returned to Old Trafford following a two-year spell with Sheffield United this summer in order to challenge David de Gea for the No.1 jersey.Henderson was rewarded with a new contract at the end of August, penning a five-year deal with the option of a further.