The 31 year old started in the game against Sheffield Wednesday at the weekend but didn’t complete the full 90 minutes due to an ‘undisclosed injury.’
But speaking with the BBC, he said: "For me, it’s most important I work on my physical side. Once I get back to being able to play 90 minutes and feeling 100 per cent I know the goals will come because that comes naturally for me.
"The part where I struggled was the last 10 minutes of a match. But I’ve been working really hard during pre-season to try and be able to play 90 minutes and not to be so tired as I was before.”