Former Comets No1 Ricky Wells is set to lead Workington for tomorrow's Championship clash against Sheffield.

Provided the USA do not pull off a huge shock by winning tonight's Speedway World Cup race-off to reach the final, last season's Comets skipper Ricky Wells will fly back to replace Craig Cook for Workington against the Tigers.

Great Britain's Cook-inspired victory in the first World Cup event at the weekend means they progressed straight to tomorrow night's final so Wells, who still lives in West Cumbria, agreed to return to his old stomping ground as a guest.

Redcar reserve Danny Ayres will also step in to guest for James Sarjeant, who faces up to four weeks out with a broken thumb.

Wells joined Edinburgh this season but still knows his way around Derwent Park and team manager Tony Jackson expects him to be an able deputy.

He said: "It's going to be tough but Ricky was the best bet by far.

"They've got a full team with Josh Grajczonek and Kyle Howarth in there who know the track.

"They were obviously very disappointed because they were tipped to be top of the pile and one of their first away meetings was at Workington when we beat them 54-37.

"They'll be fired up and they're riding quite well, plus with Craig Cook missing they'll sense an opportunity.

"It's got all the makings of a good match and hopefully we can continue our unbeaten home record."

Jackson will be absent for tomorrow night's meeting, with Comets co-promoter Steve Whitehead taking on managerial duties.

Meanwhile, Thomas Jorgensen and Ty Proctor have been confirmed as Comets' duo for the Championship Pairs at Somerset on July 21, with Cook missing due to his British Grand Prix commitments.