[Infreno]

I would sell him but not under market value. Same with Onyx LeBron.

You can complete a lot of collections with the MT to improve your roster by miles. Go after Sapphire Oscar, Sapphire Hakeem, Sapphire Russell, Sapphire Wilt, Sapphire Mullen and the Ruby Dunker collection. You get one of the best players in the game with Sapphire Erving by completing that collection.

If you spend some time on the market you can even make MT by selling the collection back. So you will be able to buy MJ and Onyx LeBron back.

For me it's more fun to have a team of 10 really good players with a good amount of MT available to try some new players out. I used to have gold Hakeem and Oscar in my team with bad players around them and no MT available. I sold them both and started to complete the collections one by one.

Right now I have a really good team and around 250k free MT available to try out some new players. So I would recommend to sell them both, complete collections and buy back the players you sold (if you want).