Wilks, 19, who won a Sky Bet League Two winners medal with Accrington last season, will stay with Doncaster until January.
'Leeds United can confirm Mallik Wilks has (on Wednesday) joined Sky Bet League One side Doncaster Rovers on loan until January 2,' Leeds said.
'Wilks enjoyed two loan spells last season, making 24 appearances for Accrington Stanley and picking up a League Two winners medal in the process, before joining Grimsby Town in January.'
Wilks has made just one senior appearance for Leeds after progressing through their academy, in an FA Cup defeat at Sutton in January 2017.
Angry Alan Stubbs dubbed St Mirren's display against minnows Spartans 'unacceptable' after watching them scrape to a Betfred Cup bonus point on penalties.
Motherwell boss Stephen Robinson has called for more of the same from Elliott Frear after the player hit a hat-trick in their opening game of the season.
Motherwell kicked off their season in style with a 5-0 win over Edinburgh City in the Betfred Cup on Tuesday evening.
Steven Gerrard admitted he has concerns about Rangers' shot-shy strike-force after their stalemate with FK Shkupi in Macedonia.
Sunderland midfielder Wahbi Khazri has completed his move to French club St-Etienne, the Black Cats have announced.