Adrian Beltre wrestled with the decision, talked to family and teammates and finally made up his mind - Sunday will be his last game of the season.
And Thursday, he will undergo thumb and shoulder surgery.
What persuaded him?
"I want to help this team the best I can next year, and doing it now will make sure I'm 100 per cent ready for spring training," Beltre said. "Everyone I talked to basically asked why I was still playing."
While the shoulder surgery is routine and will be arthroscopic, Beltre's left thumb will be a major operation - one the team trainer said will be the equivalent of 'Tommy John' surgery.
Doctors will have to replace a ligament torn in May, 2007, and rehabiltation is expected to take four to five months.
Next year would be the final season on Beltre's five-year, $64 million contract, and he was asked if he expected a trade over the off-season.
"I have no control over that," Beltre said. "I want to be back, but I want to win, too. If the team is really going to rebuild, I wouldn't want to be in that situation."
Playing all season with the torn ligament, Beltre batting .270 with 25 home runs and 76 RBI. His last game today will be his 143rd of the season.
"Adrian hasn't been pain free since spring training, but he's never asked out of the lineup," manager Jim Riggleman said. "In fact, getting him to take a day off is a fight. He's a complete professional."