43 years old ex UFC fighter Brandon Vera is fighting with Arjan Bhullar in One Championship main event in May 15 and I couldn't found any website for betting on this fight but Bhullar looks like favorite and has only one defeat so far.
Arjan Bhullar is training in the same gym as Conor McGregor as he posted a picture of him in his social media profile supporting India as well.
Brandon Vera is a veteran but I have not seen his fight for a long time.
Interesting thing is that Dan Hardy started to work with One, and may start to fight again after he was released from UFC.
Hardy last fight in UFC was back in 2012 and he was working as UFC commentator but he is now free agent, and he may see him fight again.
Dan Hardy showed interest to return to fight for the past few years but Dana White was not interested to see him return and when GSP returned Hardy was hoping he could get a final opportunity for the rematch but that was also turned down and now he had his difference with the company he might fight again.
Hardy had a serious medical condition when he was forced to retired not sure the situation now.