When it was announced that Stephen 'Wonderboy' Thompson would be taking on Rory MacDonald to determine the next #1 welterweight contender at UFC Fight Night 89, the karate expert wasn't too pleased by the news.

Thompson, who battered Johny Hendricks to earn a first round TKO stoppage at UFC Fight Night 82 last month, has had his fair share of sparring matches with MacDonald at Tristar Gymnasium, and formed a brotherly-like relationship with the former title title challenger.

The 33-year-old still isn't too enthusiastic about the matchup and questioned the UFC's matchmaking decision on Monday's edition of The MMA Hour (h/t Luke Thomas of MMA Fighting).

"I don't know why," Thompson claimed about why the UFC paired he and MacDonald. "I don't know what the UFC was thinking, they matched us up. Everybody's saying, 'Hey, you trained at Tristar.' Actually, the last time I trained at Tristar was several years ago when Georges [St-Pierre] was still fighting. I think it was before I was even fighting in MMA was the last time I was there.

"We always keep in touch," he continued. "Georges and Firas [Zahabi], they're good friends of mine and so is Rory MacDonald. A) I was wanting the Robbie Lawler fight, b) I don't want to fight a friend, but I know it's business."

Thompson entered the UFC with a tonne of hype after news got round of his undefeated 57-0 kickboxing win streak. The 170-pound fighter dazzled in his debut against Dan Stittgen, scoring a head kick KO in the 1st round, but was beaten by an unrelenting Matt Brown at UFC 145.

Wonderboy rebounded with a 5-fight win streak, rattling off wins over the likes Robert Whittaker, Patrick Cote and Jake Ellenberger, before dismanlting "Bigg Rigg" to cement his place as the #2 WW contender in the world.

The South Carolina-based fighter thinks that a win over MacDonald guarantees him a shot at the welterweight title against Robbie Lawler.

"If they don't give it to me, there's something wrong," he argued. "I'm going to be pushing like crazy. I'm not the type of guy to really sit out and wait for anything, but I'm the no. 1 contender. They have to give it to me. I don't know why they wouldn't at that point.

"I know I can put on a good show and I know I can beat Robbie Lawler. I know I can be the welterweight champion."

Thompson vs. MacDonald is expected to headline the upcoming UFC Fight Night 89 event in Ontario, Canada on June 18th.