Queens Park Rangers boss Harry Redknapp has slammed the “stupid injury” that Sandro picked up in training last week.

The former Tottenham midfielder joined the club in the summer transfer window for £10million, but he injured his knee after celebrating a goal during training at Harlington ahead of Saturday’s clash with Stoke City at Loftus Road.

Redknapp’s side managed to battle to a 2-2 draw without Sandro but the former Spurs boss has criticised the Brazilian for picking up the injury in such a manner.

He said: “It was a stupid injury. He scored a goal in training and slid on his knee like a lot of players do. I don’t know why players do it.

“The pitch was bone dry so he skidded. His knee has gone bang into the turf and I watched him trying to get up wondering ‘what’s he done here?’ Sure enough, he wasn’t fit for Saturday.

“I couldn’t believe it. He had a knee operation at Tottenham last year which kept him out for quite a while.

“It was a setback for us and I wouldn’t recommend anyone sliding on their knees. It’s absolutely crazy.”

Sandro is also set to miss Saturday’s trip to Southampton with the R’s currently 7.38 to win, with the draw 4.54 while the Saints are 1.40 for victory.

Redknapp is currently without Joey Barton and Jordon Mutch through injury and Sandro could also face a race against time to take on West Ham on October 5.