We've seen past social media faux pas come back to haunt players and even scupper transfers in the past, but Ajax have found a novel way to deal with the matter.
The Dutch side have secured the services of Kjell Scherpen, a young goalkeeper signed from FC Emmen.
However, during negotiations it emerged that Scherpen had posted a few anti-Ajax tweets as a younger man. Rather than do anything drastic like aborting the deal, Ajax instead decided to punish the 19-year-old by making him write out sentences like a naughty schoolboy.
'Ajax is de mooiste club van Nederland'