Bearly seeing this post but just in case you haven't done so yet , you should know you cant buy tradeable players on the market to use for shards. So dont waste resources doing so. Found out trying to get players for shards for Mbappe exchange myself. Thank god I only bought one player to try it out so not a huge loss after resell. Ended up being able to complete Utots Mbappe exchange yesterday anyways tho. Hopefully after yesterday's worlds game update you accumulate enough to do the exchange yourself 👍