ATLANTA -- The Phillies placed Tony Gwynn Jr. on the bereavement list Monday as he mourns the death of his father, Tony Gwynn Sr.

Gwynn Sr. died Monday at 54.

Gwynn Jr. left the team early Monday morning after flying with the team to Atlanta for the three-game series against the Braves at Turner Field. He can spend three to seven days on the bereavement list. Phillies manager Ryne Sandberg sent Gwynn Jr. a text message to offer his condolences.

To take Gwynn's spot on the 25-man roster, the Phillies recalled outfielder Aaron Altherr from Double-A Reading. Altherr hit .245 with 11 doubles, one triple, four home runs and 23 RBIs in 52 games this season. He had a 12-game hitting streak with Reading, batting .417 (20-for-48) with six extra-base hits at the time of his promotion.

"I didn't see much at all [in the spring]," Sandberg said before the game. "He can play all three outfield positions. He had actually been really hot with the bat. He's been swinging the bat well."

Altherr made his Major League debut in the 12th inning Monday, when he pinch-hit for Mario Hollands. He flied out to center field to end the inning.