Former Sunderland striker Marco Gabbiadini says the Black Cats potentially losing midfielder Habib Diarra for up to two months with injury is "a huge blow". The 22-year-old came on as a substitute in Sunderland's opening two Premier League games, but had to then be withdrawn again in last weekend's win over Fulham after picking up a hamstring issue. Black Cats boss Regis le Bris has since confirmed he is set to be out for "six to eight weeks".