PITTSBURGH -- Pirates rookie shortstop Konnor Griffin missed Thursday night's 7-2 loss to the Chicago Cubs because of right forearm soreness.
Griffin was considered available for the game, and the team said he is day to day.
The Pirates signed Griffin to a nine-year, $140-million contract in April. The 20-year-old is hitting .261 with four home runs and 12 stolen bases in 49 games.
Jared Triolo took Griffin's place at shortstop in the finale of a four-game series and went 1-for-4.
Pirates third baseman Nick Gonzales left the game after the third inning with left knee discomfort. He fouled a ball off the knee on Wednesday in a loss to the Cubs.
The Pirates also made roster moves before Thursday's game, recalling infielder Tyler Callihan from Triple-A Indianapolis and optioning outfielder Esmerlyn Valdez to the same club.
The Associated Press contributed to this report.