Valencia have taken just one point from their opening four league matches, and the heavy defeat at the Mestalla was compounded by the loss of Diakhaby in the second half.<\/p>\r\n\r\n
The central defender was forced off in the 61st minute and replaced by Iker Cordoba. Tests on Monday confirmed that Diakhaby had suffered a groin injury that is expected to keep him out until at least mid-October.<\/p>\r\n\r\n
The 29-year-old has started all four of Valencia's league matches this season and is a key figure in Corberan's defense when fit.<\/p>\r\n\r\n
Diakhaby has endured a difficult run of injuries in recent years, including a knee problem that sidelined him for 11 months and a torn hamstring tendon that kept him out for the second half of last season. <\/p>\r\n\r\n
Valencia went into Sunday's game with just one point from their opening three games, which came from a 0-0 draw at home to Celta Vigo on the opening day.<\/p>\r\n\r\n
Since then, Corberan's side has lost 1-0 at home to Betis and was beaten 3-1 away to Deportivo La Coru\u00f1a last weekend, adding to the pressure at Mestalla Stadium, which lost patience with club owner Peter Lim a long time ago.<\/p>\r\n\r\n
Valencia went into Sunday's game with just one point from their opening three games, which came from a 0-0 draw at home to Celta Vigo on the opening day.<\/p>\r\n\r\n
The only good news for Corberan was that deadline-day arrival Harvey Elliott was able to start after completing his loan move from Liverpool, although Elliott has struggled with a lack of competitive football over the past months.<\/p>\r\n\r\n