Gerwyn Price and Peter Wright have confirmed that they will compete in the Cazoo Premier League in Nottingham on Thursday.
Price missed last week's Brighton night due to an injured hand, and Wright was forced to withdraw during the weekend's German Darts Championship due to a back problem.
Wright has undergone treatment on his back and a gallstones issue since returning to the UK from Germany, and will face Joe Cullen in the quarter-finals at the Motorpoint Arena on Thursday.
"It's been a really hard couple of weeks," said Wright, who recently surpassed Price to become world number one. "I've not been anywhere near 100 percent this month.
"The back issue on top of the gallstones was the last straw for me in Germany at the weekend. I feel better now that I've been checked out by the docs.
"I will have to look after myself a bit now, rest as much as I can between events. If I can focus on the darts, I think I win matches."
Price, meanwhile, will line up against Michael van Gerwen in Nottingham, and although he is "not 100%" he has recovered sufficiently to return to action this week.
The night's action in Nottingham begins as UK Open finalist Michael Smith - last week's Brighton runner-up to Van Gerwen - plays James Wade, while former Premier League champions Gary Anderson and Jonny Clayton also meet.
Cazoo Premier League
Night 6 - Motorpoint Arena, Nottingham
Thursday March 17
Michael Smith v James Wade
Michael van Gerwen v Gerwyn Price
Gary Anderson v Jonny Clayton
Joe Cullen v Peter Wright
Smith/Wade v Van Gerwen/Price
Anderson/Clayton v Cullen/Wright
Best of 11 legs