Preliminary tests have determined that Hunter Pence has a fractured left forearm.
Henry Schulman of the San Francisco Chronicle reports that "there seems to be some pessimism" regarding the prognosis of Hunter Pence (hand).
Hunter Pence will undergo X-rays on his hand.
Hunter Pence left Thursday's Cactus League game after he was hit in the hand by a pitch.
Hunter Pence had a terrific night at the plate in the Giants' rout of the Royals in Game 4 of the World Series on Saturday, finishing 3-for-5 with a double, three RBI, and two runs scored.
Hunter Pence launched a two-run homer and reached base four times in Tuesday's World Series Game 1 win over the Royals.
Hunter Pence went 1-for-4 with an RBI as the Giants dropped Game 2 of the NLCS to the Cardinals on Sunday in St. Louis.
Hunter Pence is not in the Giants starting lineup on Saturday.
Hunter Pence drilled his 20th home run of the season in a losing effort against the Padres on Saturday.
Hunter Pence hit a three-run home run on Monday.
Hunter Pence had a huge day Sunday, going 4-for-5 with three extra base hits, two RBI and three runs scored against the Brewers.
Hunter Pence finished 3-for-4 with a walk and three RBI singles in Friday's win against the Brewers.
Hunter Pence went 1-for-2 with two walks and a run scored as the Giants beat the Rockies 3-0 on Tuesday.
Hunter Pence went 2-for-5 with a homer and two runs scored as the Giants thumped the Cubs 8-3 on Wednesday.