Minutes are the wrong unit for a tired footballer

Rotation arguments still run on appearances and minutes played, which describe almost nothing about what a player actually spent.

Forty five minutes as a substitute in a side chasing a game is harder than ninety at centre back in a match your team controlled from the eighth minute. Everybody in football knows this. Team sheets and squad reports still count both in the same currency, and so does nearly every public argument about whether a manager is overworking someone.

The unit that matters is not time on the pitch. It is high intensity repetition, and more than that, the gap between repetitions. A winger in a pressing side produces a burst, recovers for forty seconds, produces another. The same player in a team sitting deep might cover more total ground and cost himself far less, because the covering is jogging and jogging is close to free.

Then there is the part nobody counts at all. Days. The difference between a Sunday evening kick off followed by a Wednesday night away trip, and a Saturday afternoon followed by that same Wednesday, is roughly a full night of sleep and one usable training day. That is enormous, and it is invisible in every fixture congestion piece I read, which tend to count matches per month and stop.

I would also push back on the assumption that the reserve is fresh. A player who has not featured for three weeks trains at full intensity daily with no match to taper around, then gets dropped into a knockout tie at an intensity he has not touched since July. Clubs know this. It is why the reserve who comes in and pulls up is such a familiar sight, and why the reflex explanation, that he was undercooked, is nearly right for the wrong reason.

What would I do? Retire minutes as the headline figure and report something closer to intense efforts per available recovery hour. Ugly phrase. Better number. It would show immediately that some celebrated iron men are doing less than their appearance record implies, and that some squad players are quietly running at a rate nobody authorised.

The honest version is that a manager resting a player who looks fine is usually not being cautious. He is reading a figure you are not allowed to see, and that figure is more often about last Sunday's travel than about Wednesday's opponent.