"I'm in tip-top shape. The 11 months I was out my body could relax and it allowed me to get over the injuries, but I'm back, feeling good and really raring to go," he said.
"It was tough, but Rafael Benitez supported me through the whole thing. It wasn't something he was happy about, but it happened. I've got a year left at Liverpool and I can't wait to get back into it.
"In a way my injuries were a good thing because it gave me the rest I needed, as I was going for along time up until the injury.
"I had 11 months away from the pitch, although I was working hard in rehab. But to get that rest was perfect and that could prolong my career for another two or three years maybe."