FILE - In this Aug. 10, 2019, file photo, Boston Red Sox's Mookie Betts hits an RBI-double during the sixth inning of a baseball game against the Los Angeles Angels in Boston. Betts has agreed to a $27 million contract with the Red Sox. It is the largest one-year salary for an arbitration-eligible player. (AP Photo/Michael Dwyer, File)
FILE - In this Aug. 10, 2019, file photo, Boston Red Sox's Mookie Betts hits an RBI-double during the sixth inning of a baseball game against the Los Angeles Angels in Boston. Betts has agreed to a $27 million contract with the Red Sox. It is the largest one-year salary for an arbitration-eligible player. (AP Photo/Michael Dwyer, File) Credit: Michael Dwyer

The holdup in the trade that would send 2018 AL MVP Mookie Betts to the Los Angeles Dodgers is unfair to the players involved, the head of their union said Friday.

The Boston Red Sox had a pending trade that would send Betts and David Price to the Dodgers for outfielder Alex Verdugo and Twins pitcher Brusdar Graterol.

But Boston is said to have balked when it saw Graterolโ€™s medical records. โ€œThe events of this last week have unfairly put several Playersโ€™ lives in a state of limbo,โ€ Major League Baseball Players Association boss Tony Clark said.