His last MMA fight was in 2007, and he's on a 6 fight losing streak and hasn't won in 7. Any talks of him being signed for the UFC are a pretty laughable, though you never know, he could make an appearance at the next UK UFC event, if he wins his next fight anyway. He's been fighting K-1 since 2007, and from what I've read is doing very well, and is actually a K-1 Champion of some kind. Think his next fight is an MMA bout though, against some bloke called Tom Watson, who's got a 10-3 record and is apparently the Welterweight champion of the organisation he competes in. Alex will be featured in a documentary following his build up to the fight on Bravo in the UK, and that channel will show the fight too.
I have to say though, I do like the bloke. I don't normally watch Big Brother, but actually watched a few episodes this series, and Alex did come across as a quality bloke. I thought he was an arrogant twat from seeing him on TUF, with all his shit talking during the fight and stuff, but in BB he was a genuinely nice guy. I'm looking forward to seeing his next fight.