Catfish Blues
Player Valuation: £15m
It's a ridiculously flawed study to provoke something that isn't there.
I've just read it, and it is indeed flawed.
To really see how much subconcious bias there is in commentaries, you'd need to adjust for the realities of the players in the game. So, for example, DCL is undoubtebly fast and hard working, as is Richarlison ( not as fast as DCL, but no slouch ). So you'd expect them to be mentioned as such in a commentary. Then you need to find similar pale skinned strikers with the same attributes and see if they got mentioned as being fast and strong as well.
Then you need to look properly at the players skill levels to make a judgement as to how much praise you'd expect them to get compared to reality and adjust accordingly
I'm sure there will be subconcious bias at play in commentaries, most of us have some degree of bias, but that paper isn't great. It would be interesting if someone with a bit more nouse and understanding than the author had a look a the subject more thoroughly, because there's doubtless some important lessons to be learnt, but it seems like an opportunity missed.