Don't know for what exactly he is doing it...maybe he's trying to play a derelict not even have proper clothes - a man having reached rock bottom. If it is that, then it could be for his upcoming movie SZP, where he plays the original coach Ron Jones:
"Ron was the real-life basketball coach of the team of disabled people who inspired the movie One Special Victory (1991). And as the original teacher of the 1967 high school classroom experiment in extremism known as "The Third Wave" (aka "The Wave"), he is featured in both Wave documentaries." https://www.imdb.com/name/nm0429168/bio/
One Special Victory was a telefilm and showcased how deep Ron sank before getting the coaching 'job'.
https://www.imdb.com/title/tt0102596/mediaviewer/rm30487809/?ref_=tt_ph_1
In Campeones and Champions, the coach had other issues...
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