Though the Philadelphia Phillies currently hold a comfortable lead atop the National League East, they'll have to make do without two of their most important hitters for at least some period of time.

The Phillies placed first baseman Bryce Harper and designated hitter Kyle Schwarber on the 10-day injured list Friday, one day after both were hurt in the team's 7-4 loss to the Miami Marlins.

Harper, named to his eighth career All-Star Game as the NL's leading vote-getter prior to Thursday's contest, strained his left hamstring while running out a ground ball for the final out of the game.

Schwarber, the 2022 NL home run champion, exited in the eighth inning after straining his left groin while making a throw from the outfield to first base.

Both players are undergoing additional testing, though Phillies manager Rob Thomson told reporters Friday the team believes the two sluggers may be out for only 10-to-14 days and each has a chance to return before the All-Star break, which begins July 15. 

Rob Thomson said there is a “good chance” both Harper and Schwarber return before the All-Star break. They’ll see how it goes. More here: https://t.co/rNFSoL9p3q

— Matt Gelb (@MattGelb) June 28, 2024

Harper, the NL MVP in 2015 and 2021, is in the midst of another outstanding season. The 31-year-old currently ranks third in the NL with 20 home runs and fourth in runs batted in (58) to go along with a .303 batting average in 76 games. He extended his hitting streak to 12 games with a run-scoring double in the first inning of Thursday's loss.

Schwarber, whose 110 home runs since the start of 2022 trails only New York Yankees superstar Aaron Judge for the most in the majors, is hitting .250 with 17 homers, 49 runs batted in and an NL-leading 59 walks in 79 games.

The two-time All-Star was making only his third start in the outfield this season in Thursday's game.

Kody Clemens is expected to fill in for Harper at first base after being activated from the injured list Friday. The son of legendary pitcher Roger Clemens batted .256 with three home runs and 10 RBIs over 17 games before landing on the IL with back spasms earlier this month.

The Phillies own MLB's best record this season at 53-28 despite injuries to other key members of the lineup. Shortstop Trea Turner missed more than six weeks with a strained hamstring before returning on June 17, while catcher J.T. Realmuto is currently sidelined after undergoing knee surgery earlier this month.