Former world champion Amir Khan has undergone surgery on his right elbow.

The Olympic silver medallist, 32, stated that he felt pain during last month's fight with WBO welterweight champion Terence Crawford. Khan was stopped in the sixth round of that bout.

Khan revealed the surgery on social media: "Hi guys, so I had an operation today on my elbow area. From the last fight I could feel the pain when I was throwing the right hand. There's a bit of extra bone growing there which was knocking and making it very painful. Hopefully I should be back in the ring soon. Boxing is a tough sport when you have to work hard and train hard and you get all these injuries. To overcome these injuries you have to come to the hospital. So hopefully I won't get these injuries. I'll come back stronger. It was giving me pain in my last fight. I’ll be back punching hard in 3-4 weeks. Can’t wait to get back in the ring."

No word on when Khan plans to return and where, but he's previously mentioned a ring return in October or November.

There are several potential options for him in a packed welterweight division.

The biggest option would be a showdown with his domestic rival Kell Brook, who has been inactive since December when he had a tougher than expected decision win over Michael Zarafa.