Defoe, 25, said: "I'm alright and I'll be back this weekend. I saw a specialist for some scans and it was only a little problem with my back. It was running through the back of my legs and that's why it was feeling really tight in my hamstrings and my calves."
Portsmouth striker Defoe shakes off calf fear
Portsmouth striker Jermain Defoe says he's fit and available after fears of needed surgery over a calf problem.