Why would Leo Messi stay? Getty ImagesThe Euros are over, so the next few weeks will be full of the usual summer madness: transfer stories and players signing or not signing anywhere. There will also be rumors about both.AdvertisementBarcelona will be the epicenter again. But not for any reason. The Catalan giants could be on the verge of collapsing, as they are closer than ever.Barca has been making headlines recently for signing Sergio Aguero as well as Memphis Depay, on free transfers. They are also negotiating a new contract to Lionel Messi. Barca's problem is that they cannot register their new players until they comply La Liga's salary rules. This will mean they have to cut their wage bill by half before the season begins. Barca is looking to reduce their wages by $237 millionThey don't want the players they would like to cut. Phillipe Coutinho has been wanted by the club for several years, but no one is interested. His wages are high and he has barely played for them. After they purchased him from Liverpool for $197million, it is believed that they would be willing to settle for $25-30 million. This is the kind of business that has landed him in this mess.This thread provides more detail on what's happening. The cloud that hangs over all of this is why Lionel Messi would choose to endure it all. What kind of team will Barca have for him?Barca feels as though they are about to commit suicide. This could have already happened if Messi wasn't there to keep them on the field. If he decides he doesn't want to take part in this anymore and he is no longer a free agent, the Blaugrana could be in serious trouble.