Johnny Walker (right) will face a tough test in the surging Mingyang Zhang. | 📷: Getty/UFC While Johnny Walker has answered adversity's demands before, more than two years have passed since he posted a victory.

Johnny Walker believes his training camp for UFC Fight Night 257 was the best of his career. According to Walker (21-9 MMA, 7-6 UFC), that's largely due to his recent move to Las Vegas, where he started training at Xtreme Couture with head coach Eric Nicksick.

Johnny Walker remains a constant in the UFC Light Heavyweight division, seven years after making his debut for the promotion. The six-foot-five Brazilian fighter earned his spot in the promotion through Dana White’s Contender Series and has made the most of his opportunity with a long career in the UFC.

Johnny Walker will look to get back in the win column when he takes on Zhang Mingyang in the main event of UFC Shanghai on Saturday. Walker is in dire need of a victory as he's been winless in his last three fights.

The ‘Mountain Tiger’ Zhang Mingyang will aim to continue his epic winning run when he faces Johnny Walker in the light heavyweight main event of a UFC Fight Night, set for the Shanghai Indoor Stadium on Saturday afternoon.