Despite being a former teammate and sparring partner, American Top Team’s Colby Covington sees UFC welterweight champion Tyron Woodley as ‘public enemy number one’.

Covington, 29, has accused ‘T-Wood’ of being mentally weak and, yesterday, after Covington got news of Woodley demanding an apology from Dana White, the top ten welterweight fired back on Twitter.

Woodley threatened to ‘leak’ some personal details about White if he didn’t get an apology, but Covington says he has dirt on the current champ that could ‘ruin his life’.

Don't worry boss @danawhite I know some serious dirt on @TWooodley that would ruin his life. #fake https://t.co/MK9SdXRgge — Colby Covington (@ColbyCovMMA) August 1, 2017

‘T-Wood’ has been bombarded with criticism over his lackluster title defense against Brazilian Jiu Jitsu expert Demian Maia at UFC 214. Woodley walked away with the unanimous decision but was slammed for his overly cautious fighting style. His fight against Maia set the record for the lowest number of strikes thrown in a five-round championship bout, and the defending champ was met with a chorus of boos in the post-fight interview.

Covington, who last fought at UFC Fight Night 111 where he beat Dong Hyun Kim, is clearly angling for a grudge match against Woodley. The No. 8 ranked welterweight contender is on a four-fight win streak and is doing his part to generate interest in a title fight against his former teammate.