PITTSBURGH (AP) — Neil Walker hit a three-run homer in the first inning and the Pittsburgh Pirates made it hold up behind starter Vance Worley, beating the Cincinnati Reds 3-2 on Saturday for their fourth straight victory.

Walker’s 18th home run put the Pirates ahead 3-0 against Alfredo Simon four batters into the game. Pittsburgh’s winning streak matches its longest of the season.

Worley (6-4) allowed two runs — one earned — and three hits in 6 1-3 innings to snap a career-worst, three-start skid. Mark Melancon pitched a perfect ninth for his 26th save after Justin Wilson and Tony Watson combined for 1 2-3 scoreless innings.

Despite retiring 12 batters in a row between the third and sixth, Simon (13-9) fell to 1-6 since pitching in his first All-Star game last month.

Todd Frazier homered for the Reds, who lost their seventh road game in a row. Simon allowed four hits and three walks in seven innings while striking out seven.

The game featured only seven hits, four by Pittsburgh.

The Pirates are a major league-best 24-9 at home since June 19.

Cincinnati cut it to 3-2 in the seventh, scoring a run when first baseman Ike Davis dropped Zack Cozart’s two-out popup for an error.

BAD YEAR FOR BRUCE

Reds RF Jay Bruce called this season “the most embarrassing year of my life.” He went 0 for 3 with two strikeouts, dropping his batting average to .217.

Bruce is 4 for 32 with 15 strikeouts in his last nine games. He is 2 for 12 in his career against Worley.

UP NEXT

Reds: RHP Johnny Cueto (15-8, 2.26 ERA) will look to snap his two-start losing streak in which he has allowed six runs over 11 1-3 innings for a 4.76 ERA. He faces LHP Francisco Liriano in a rematch of last year’s NL wild-card game. Cueto is 16-4 with a 2.26 ERA in 25 career starts against Pittsburgh.

Pirates: Liriano (3-10, 3.98) is 0-3 with a 4.03 ERA in his last five starts but pitched six scoreless innings Monday against St. Louis. Though he won the wild-card game last season, Liriano is 0-5 with a 4.25 ERA against the Reds in seven regular-season starts.

TRAINER’S ROOM

Reds: No injury updates.

Pirates: 3B Pedro Alvarez (sprained left foot) missed his third straight game and RF Travis Snider (strained right hamstring) sat out for the second day in a row. . RHP Charlie Morton (right hip inflammation/sports hernia) won’t be able to build up enough to rejoin the starting rotation by the time he is eligible to be activated from the disabled next Friday, but said he would be willing to pitch in relief.

MORE BENCH HELP

The Pirates recalled a player from Triple-A Indianapolis for the second straight day, bringing up INF Brent Morel to help off the bench with Alvarez and Snider unavailable. 1B-OF John Lambo was recalled on Friday night.

LHP Jeff Locke was optioned to Indianapolis in a procedural move. He will remain with the Pirates and be recalled Monday when major league rosters expand. Locke is scheduled to start Tuesday night at St. Louis.

BAD YEAR FOR BRUCE

Reds RF Jay Bruce called this season “the most embarrassing year of my life.” He went 0 for 3 with two strikeouts, dropping his batting average to .217.

Bruce is 4 for 32 with 15 strikeouts in his last nine games. He is 2 for 12 in his career against Worley.