Morgan played for 17 clubs during his career but was most active at Aldershot Town and Shrewsbury Town between 2008 and 2013.
It was Morgan's fashion brand, called 'Fresh Ego Kid', that saw him strike up relationships with several Premier League stars and news of his death stunned the footballing world.
Lukaku, who described it as 's**t news' posted on his Instagram story: 'This is some s**t news man... RIP my brother you will be missed.'
Villa winger Ashley Young wrote: 'Sorry to hear the sad sad news this morning about Marv. I'm lost for words, to think we was just joking the other week. RIP BRO.'