Joe Panik’s walk-off single leads Giants past Angels, 3-2

KEY MOMENT: The Giants put runners on first and third with one out in the ninth, a rally Buster Posey started with an infield single off Joe Smith. Pinch-runner Gregor Blanco took second on Justin Maxwell’s sacrifice bunt and third when Smith’s fourth ball to Andrew Susac hit umpire Bill Miller in the left knee and went to the backstop. With the Angels employing a five-man infield, Smith struck out pinch-hitter Brandon Belt for the second out. Brandon Crawford was walked intentionally to load the bases, and pinch-hitter Joe Panik lined a game-winning single to center.

AT THE PLATE: The Angels rallied to tie the score, 2-2, in the eighth when Erick Aybar reached on second baseman Matt Duffy’s error, took third on Johnny Giavotella’s single to center and came home on David Freese’s sacrifice fly to center. Matt Joyce, who entered with a .134 average, added a clutch RBI single in the seventh, but the Angels were held to three runs or fewer for the 14th time in 23 games.

ON THE MOUND: Giants starter Chris Heston gave up one run and five hits in 6 1/3 innings, striking out five and walking one. Angels reliever Fernando Salas gave up one hit in a scoreless eighth.

IN THE FIELD: Kole Calhoun raced in from right field and made a spectacular full-extension diving catch of Susac’s popup to open the fifth inning.

UPON FURTHER REVIEW: Trailing, 1-0, in the seventh, Calhoun led off with a single, and David Freese followed with a grounder that third baseman Casey McGehee misplayed. But the ball caromed to shortstop Crawford, who threw to second for a forceout, a call Manager Mike Scioscia challenged. Calhoun looked safe on replay, but after a review, umpire Doug Eddings’ call was upheld. “I don’t think there’s anybody in the world who’s going to see that replay and not think Calhoun was safe,” Scioscia said. “That just baffles me. It’s 100% obvious Kole was safe.”

INJURY UPDATE: Albert Pujols, who suffered a left-hamstring injury Wednesday night, jogged on a de-weighted treadmill and took batting practice on the field Friday. Pujols said he was “feeling better,” but when asked whether he was confident he wouldn’t go on the disabled list, he said, “I can’t tell you that.”

EXTRA BASES: With Pujols out, the Angels recalled first baseman Efren Navarro from triple-A Salt Lake and sent utility player Grant Green back to triple A. … Angels minor league pitchers ranked first among all major league organizations with a 2.85 strikeout-to-walk ratio in April, averaging 8.70 strikeouts and 3.05 walks per nine innings.

UP NEXT: Left-hander Hector Santiago (2-1, 2.28 earned-run average) will oppose San Francisco right-hander Tim Hudson (0-2, 3.91) at AT&T Park on Saturday at 1 p.m. On the air: TV: FS1; Radio: 830.