Red Sox shock fans with trade involving Chris Sale.
Sale waived no-trade clause to join the Braves.
Boston covering $17 million of Sale's $27.5 million salary for 2024.
Trade brings highly regarded infield prospect Vaughn Grissom to Red Sox.
Grissom expected to take over at second base with six years of control.
Sale's tenure marked by ups and downs, injuries, and All-Star appearances.
Giolito signed to bolster Red Sox rotation.
Departure of Sale leaves a void in the pitching staff.
Money freed up may be used to acquire more rotation help in free agency.