During the height of the leadup to the Mookie Betts trade, the Padres were involved as legitimate players before the Dodgers stepped up and eventually got the deal done. One of the variations involving San Diego was one in which the Red Sox would take back Wil Myers, along with part of his salary. According to reports, one of the major holdups in that scenario was nailing down exactly how much of Myers’ contract Boston would take on as part of this deal.
Obviously, Betts is now in Los Angeles, but the Myers trade talks have apparently not stopped.