Leon Haslam says it has been an anxious wait to get back to business in World Superbikes since his worst round of the year at Laguna Seca and hopes Aprilia's typically strong form at Sepang continues this weekend.

Two weeks ago in the US, the Aprilia Racing Team - Red Devils rider crashed out of race one while running in sixth and was only able to recover into a lowly 13th, while in race two he lost out to team-mate Jordi Torres to scamper home in fifth.

Since leaving Laguna, Haslam says he's been desperate to start his fightback after falling further behind Ducati's Chaz Davies in the race for third place in the championship, after the Welshman notched up Ducati's first double victory since 2012 in WSBK.

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"I have been anxiously awaiting the Malaysia round," Haslam said. "Laguna Seca was the most difficult weekend of the season for me. I want to get back to winning and I think that the Sepang track is the right place to do it."

Haslam once again welcomes Max Biaggi into the Aprilia fold as the two-time champion gets his second wildcard outing of 2015 and is confident the three-bike attack will pay dividends for the Italian squad.

Last year the factory Aprilia squad enjoyed the perfect race weekend by totally dominating every area. Marco Melandri notched up a double victory and also set the fastest laps in each race, while Sylvain Guintoli grabbed two second places from pole position and in 2013 Eugene Laverty also managed a victory in Malaysia on the Aprilia.

"This is traditionally a good circuit for Aprilia and I'm sure that Max's contribution will also be helpful," Haslam added. "Now all that's left is to start working with our best efforts from the first laps and to managing our setup well will also be fundamental given the extreme conditions."