Leeds United and Sheffield United's injury list in full - Whites wait on four players, Blades without eight
Leeds United host Sheffield United on Saturday afternoon in the Premier League - but what injury worries are plaguing both teams ahead of the meeting?
Marcelo Bielsa welcomes his predecessor Paul Heckingbottom to Elland Road this weekend in the top flight.
The Whites enter the game in 11th place following the international break while the Blades sit rock bottom having parted company with head coach Chris Wilder in recent weeks.
The Yorkshire derby in LS11 is set for a 3pm kick-off in West Yorkshire.Here, we take a look at both injury lists in full ahead of the showdown:
Leeds United injury concerns
Rodrigo - muscle
Pablo Hernandez - muscle
Adam Forshaw - hip
Mateusz Klich - Covid-19
The latest addition to the unfortunate injury list is midfielder Mateusz Klich.
The 30-year-old tested positive for Covid-19 while away with the Poland national team and is self-isolating in line with the current rules. He is, though, expected to have completed his isolation period in time for the Blades clash.
Club captain Liam Cooper returned to training last week after illness and should be available.
Rodrigo also made a comeback from a groin issue but was deemed touch and go for the trip to Craven Cottage before the international break.
The Spaniard missed out in the capital along with countryman Pablo Hernandez, who both may have benefited from the extended break to provide a boost to Bielsa's squad this weekend.
Adam Forshaw - who was spotted by eagle-eyed fans returning to training recently - is still working his way back from a long-term complex hip problem.
Sheffield United injury concerns
John Egan - ankle/foot
Billy Sharp - hip
Chris Basham - knock
Enda Stevens - knock
Sander Berge - thigh
Jack Robinson - knock
Jack O'Connell - knee
Jack Rodwell - undisclosed
Blades interim boss Paul Heckingbottom is hopeful of having Chris Basham back for this weekend's clash with Leeds.
Heckingbottom will still have significant injury problems even if Basham returns, however.
Another key centre-back, Jack O'Connell, needed knee surgery at the end of September and then in January suffered a setback in his attempt to return. He's yet to make it back again.
John Egan, yet another central defender, broke a toe against West Ham in February and is now back on the grass, but the Leeds game is thought to have come too soon, while wing-back Enda Stevens, who played in a back three against Chelsea, returned to Sheffield United this week after being pulled out of the Republic of Ireland's final match of the international break.
Left-back Jack Robinson hasn't played since December due to a foot problem and Jack Rodwell hasn't played all season.
Former Leeds striker Billy Sharp has been struggling with a hip flexor issue and missed the Chelsea game. Fellow forward Lys Mousset is expected to be fit, although he's yet to manage a full 90 minute appearance during an injury-disrupted campaign.
Midfielder Sander Berge went under the knife at the end of December to correct a hamstring problem and is yet to feature since.