Chelsea boss has had the benefit of a fit squad while Arsenal manager has depleted troops.
Arsene Wenger may have been stuck in English football for too long. Consequently, he may now be utilising "dinosaur" fitness methods employed by David Moyes at Manchester United.
By taking one look at the current injury league table in football, one no manager wants to be top of, it is the Gunners who are in the lead - like they usually are, season after season.
Arsene Wenger is currently without nine players with the bulk of them muscular. Lukasz Fabianski is ill, but Serge Gnabry (knee), Kieran Gibbs (ankle), Laurent Koscielny (calf), Ryo Miyaichi, Mesut Ozil (both hamstring) and Jack Wilshere (foot) have all suffered injuries that could perhaps have been prevented.
Theo Walcott and Abou Diaby, meanwhile, are nursing anterior cruciate problems.
Chelsea, by contrast, only have one player injured - Belgium attacker Eden Hazard, who was withdrawn from the field last night, Tuesday, in what the player himself described as a "precautionary" measure but one in which manager Jose Mourinho believes may impact the upcoming fixture list.
It is no coincidence that Wenger has almost an entire team out injured - and has done for much of the season - while Mourinho has the benefit of a full squad.
It is not luck.
It is by design.
Mourinho and his assistant Rui Faria understand the importance of fitness, of conditioning and of injury recovery. That is not to suggest that Arsene Wenger does not recognise it as a worthwhile expenditure of his time, but only one of these men actually utilises the correct methods on the training ground.
Renowned fitness expert Raymond Verheijen has long criticised Wenger and Moyes for their prehistoric ways on the training ground, with their treatment plans for Aaron Ramsey and Robin van Persie attracting the Dutchman's ire.
Had the Gunners chief and United boss implemented a similar program to the one adopted by Mourinho from the start of their pre-season, then their results may have been different.
If not their results, then certainly their ranking in the injury league…
Look at Mourinho's impressive injury record over the years. Jose can play with his strongest team almost every game. The road to success….— Raymond Verheijen (@raymondverheije) April 8, 2014
Jose Mourinho & his assistant Rui Faria apply the football specific approach. Conditioning with the ball & gradual build-up in pre-season.— Raymond Verheijen (@raymondverheije) April 8, 2014