"The last two or three years have been very difficult for me. I've been in a rut but I'm hoping that coming to Bolton, where Sam has a habit of turning players around who have lost their way, will help me get back to where I was before the accident."
He added: "I've had a lot of support from friends and family, who have all been telling me to keep going. Now Bolton have given me a chance and I'm going to take it with both hands.
"I am nervous, but these are the cards I have been dealt."
"I started doubting myself," said Jansen.
"But it wasn't a sports psychologist I needed, it was a psychiatrist.
"It was a brain problem rather than a physical problem. The psychiatrist helped and now everything has been addressed.
"I need a chance and, hopefully, I can rediscover my form."