no but its canon that mikael loves to watch yousef work out. he knows how much hard work yousef puts in to keep his body in shape and how dedicated he is to it, and mikael admires that loyalty that yousef has in him, so much, because it transcends into everything yousef does. yousef will always give his 110% into everything and everyone he loves.
plus, mikael just really loves to watch his boy smashing weights and throwing around punches and working out. and if yousef catches him midway and smirks at mikael, and mikael just so happens to smirk back, well, that makes it even more sweeter.