"I won't lie, the last few months have been frustrating and hard work, but when you're a professional rugby player you have to be prepared to take the odd knock when it comes along. It's how you deal with it after that is important All the medical and conditioning staff have been fantastic with me and I feel that I am coming back even stronger," said Clark.
"It's been like having a second pre-season, I've put on another five kilos, but as I said I feel a lot stronger than before. Before the injury I was having a few problems with my neck and my shoulders, but during the break I've been able to build those areas up and I feel so much better for it."
"I'm not expecting to walk straight back into the side, it's now up to me to prove myself and show Rob and the other coaches what I can do.
The sight of Clark back on the field, however, is a welcome boost to the Chiefs, who know victory over their French visitors on Saturday evening will set-up a potential group decider against Pool 3 leaders Montpellier a week later.
"If we get a result on Saturday then we know it will be in our hands for the following week," added Clark.
"We know Saturday will be tough. Bourgoin are having a few problems behind the scenes at the moment, but they could come here with absolutely nothing to lose.
"Being the underdogs sometimes can bring the best out of you, so we can't afford to underestimate them in any away. They have some fantastic players and we know from playing them over there, it won't be an easy game. Although if we can make Sandy Park a bit like it was over at their place, a bit hostile and a tough environment, that it would nice to put the shoe on the other foot."