Stoke are second in the standings after Sam Clucas starred in a 3-1 victory against his former side Swansea.
Nick Powell gave the visitors a deserved lead that Clucas added to, holding up his shirt in celebration, before Leo Ostigard added a third and Swansea substitute Joel Piroe grabbed a consolation.
Former Stoke boss Nathan Jones' Luton sit a place behind them having triumphed 1-0 at Barnsley thanks to Amari'i Bell's first goal since March 2019.
Coventry ended the evening in fourth thanks to Viktor Gyokeres' goal on the stroke of half-time sealing a 1-0 win at Blackpool.