"It's much better now and I think I'm ready to go," said Fred with a smile ahead of training at La Trobe University. "I am ready to play.

"I think I can play 90 minutes."

The 32-year-old injured his 'string during the warm-up to the club's Round 2 fixture against Perth Glory.

After a fortnight in rehab he returned to action against Adelaide United last Friday night, coming on as a substitute in the 54th minute.

Fred said he was reluctant to start against the Reds because of hamstring issues he experienced last season with MLS side, DC United.

"I am a little bit still scared because it's a new injury," he said. "I had it two times at DC in different spots, but I knew what I have to do and that's why I recover faster this time.

"This week I will be much better to play a full game."

Asked how he coped during his spell on the sidelines, Fred said: "It's very frustrating.

"I can't watch a full game, it's tough."

Fred said he was confident the Heart could achieve a breakthrough win on Saturday to atone for their 3-2 opening-round loss to the Jets who scored what proved to be the match-winner from a nasty deflection in the fourth minute of extra time.

"Always you have to be confident, even though we didn't won a game yet," he said. "We are a good team and we need some luck now.

"We have been winning games and at the last minute they have a chance and score a goal, so we have to be alert and concentrate."