Jonas Olsson is having to deal with the aftermath of his challenge on Tom Cleverley on Monday.
A serious-looking injury may be revealed today and the West Bromwich Albion defender Jonas Olsson admitted he feels "heartbroken" for the Manchester United loanee.
Watford`s top scorer left Vicarage Road on crutches following the physical 1-1 draw, having been stretchered off wearing an oxygen mask following the collision midway through the second half.
Olsson told the Birmingham Mail: "It`s never nice to be involved in an injury like that.
"Everyone who saw the tackle will know it wasn`t intentional. He got the ball away from me, I slid to get the ball, he ran in and we got tangled up.
"I hope it`s not bad but it does get to you when something like that happens.
"I do feel heartbroken for the lad and I wish him all the best."
Watford boss Malkay Mackay commented on his young striker: "He`s not gone to hospital. Everything`s precautionary as far as out there is concerned. It`s what medics do all over the country, oxygen and stretchers if at the point they think that`s needed."
Olsson also received support from West Brom boss Roberto Di Matteo: "As far as I could see, he was in possession, passed the ball and I`m not sure exactly how the challenged happened, but it was on the ball.
"I don`t think there was anything wrong with my player. It was pretty unfortunate."