Middlesbrough manager Jonathan Woodgate has not put a timeframe on striker Britt Assombalonga’s return to fitness after the 27-year-old was seen leaving the Riverside Stadium on crutches.

The forward was the subject of a strong challenge from Charlton midfielder Darren Pratley on Saturday, and the Congolese international was unable to take any further part in the game.

Assombalonga had been a doubt for the match due to a sore ankle but Woodgate has confirmed that the injury he sustained at the weekend was a new one, and he doesn’t know how long he will be out for:

“I think that’s a new injury, which is not good. I didn’t think it was the best challenge in the world. Darren apologised to me after the game. Darren Pratley is not that kind of player, he’s not malicious in any way – okay he’s caught him.”

“I’m not sure how long Britt will be out for but that will be another blow to many, but it happens and it’s another opportunity for someone else to come into the team.”

Considering Boro’s lack of goals, Assombalonga will be sorely missed with the striker having had a hand in eight of the Teessider’s 17 league goals this campaign.

One piece of good news is that Rudy Gestede is stepping up his recovery from a hamstring injury, with the Benin international expected to play for the Under 23s against Aston Villa. He is, however, unlikely to feature against Nottingham Forest tomorrow night.