Wrexham are aiming to reach the FA Cup quarter-finals for the first time in 29 years but first must beat Premier League giants who will be hoping to all the way in one of their last chances for a trophy.
Chelsea picked apart Aston Villa to get back into the thick of the top four race in midweek and will rotate their side against Championship side Wrexham whose Hollywood owners will be delighted with such a high octane clash.
Pedro Neto picked up a red card against Arsenal last week but will return to the squad against Wrexham this weekend which gives Rosenior more options in the middle.
However, in defence, Rosenior will miss Levi Colwill (knee) whilst in midfield he is also without Jamie Bynoe-Gittens (thigh) Dario Luis Essugo (other) and of course Mykhailo Mudryk who is still suspended.
Estevao (thigh) is also still out but Rosenior revealed that he “is back on the pitch running, which is great, and he’s doing really well” which is promising news for the 18 year old.
Wesley Fofana also appeared to suffer a hamstring injury during the second half of Chelsea's 4-1 win over Aston Villa but there has been no further update on the Frenchman.
He was spotted limping down the tunnel after he was replaced by Tosin Adarabioyo in the second half, meaning he will likely miss the Wrexham clash as a precaution.
Finally, the likes of Joao Pedro, Liam Delap, Reece James and Cole Palmer are likely to be benched for the clash as they rest and recover.