As you say the PL site has him listed as tenth. So on a rough basis of 25 players per squad and there being 20 squads in the league giving a rough total of 500 players then tenth counts as being one of the fastest players in the entire league.Got a link to that? Premier League site has him as tenth.
Take their stats from Opta. Can't find the direct Opta stat but that kind of info may be behind a paywall or need requesting. Of course acceleration is probably a factor in being fast in terms of football and that isn't covered from what I can see.