Trade negotiations between the Golden State Warriors and Miami Heat have come to a halt due to Jimmy Butler's unwillingness to sign an extension with the Warriors, according to ESPN's Brian Windhorst.

Here is a look at four teams in the running for Jimmy Butler, how a deal with each could happen and what obstacles are in the way.

“The Grizzlies, for example, have held exploratory talks with Miami about Butler, but those interactions haven't gone far,” The Athletic reports. “According to league sources, the Heat asked about Memphis' young players, which the Grizzlies rebuffed.”