Fotmob doesn't express an opinion it merely presents stats collated by Opta. Sofascore and the BBC do similar. What significance you attach to those stats is up to the individual. If you're not interested in stats fair enough, but then you're not in a position to comment on them one way or the other.
Where stats come into their own is with the percentile figures which show you how players compare to all other players in the same position in the same league.
So when Fotmob shows that the 58 tackles won by Ronald is 100th percentile, as is his 298 duels won, you then know he's the best in league for those metrics. He's also 97th percentile or better for interceptions, recoveries and balls won in the final third. That is why I conclude that he's the best winger in the Championship defensively. Eyeballs alone tell me he's pretty good defensively, but it's only the stats that tell us that he's the best.
Where stats come into their own is with the percentile figures which show you how players compare to all other players in the same position in the same league.
So when Fotmob shows that the 58 tackles won by Ronald is 100th percentile, as is his 298 duels won, you then know he's the best in league for those metrics. He's also 97th percentile or better for interceptions, recoveries and balls won in the final third. That is why I conclude that he's the best winger in the Championship defensively. Eyeballs alone tell me he's pretty good defensively, but it's only the stats that tell us that he's the best.