■ SCORE: Pirates 4, Red Sox 3.
■ RECORD: 13-10-1.
■ BREAKDOWN: The Red Sox held a 2-1 lead through six innings, largely because Clay Buchholz allowed only one hit and one run in his five innings. The righty, slated for the No. 2 spot in the rotation, hung a pitch to Neil Walker in the second, which Walker blasted over the fence in right. Boston took its 2-0 lead in the first off James McDonald. Shane Victorino hit a leadoff triple, and after Jackie Bradley Jr. reached on an infield single and Jarrod Saltalamacchia walked to load the bases, Ryan Lavarnway lined two-run single to left. The Pirates used the long ball to take the lead and then add on. Gabby Sanchez homered in the seventh with a man on vs. Chris Carpenter, then Mike McKenry hit a solo blast in the eighth. The Sox got one back in the ninth on Jeremy Hazelbaker’s RBI single.
■ THUMBS UP: Buchholz ran his scoreless streak to 9⅓ innings before allowing the Walker homer. He has been working on his tempo and it’s made quite a difference . . . Daniel Nava, vying for a job as the backup outfielder/first baseman, helped his cause with two hits. Lavarnway, who had been struggling the entire camp, had the two-run single . . . Koji Uehara (another scoreless inning) looked solid as well.
■ THUMBS DOWN: Jarrod Saltalamacchia went 0 for 3 and left three men on . . . The Sox left 17 men on; first baseman Travis Shaw took an 0 for 4 and struck out four times, leaving three on . . . Carpenter allowed the two-run blast and Oscar Villareal allowed three hits and one run in his inning.
■ MEDICAL REPORT: It was status quo on David Ortiz (heels) and Stephen Drew (concussion), as neither player was able to advance to the next level of activity. The inflammation in Ortiz’s right heel has not alleviated, and Drew is still experiencing concussion-like symptoms . . . Franklin Morales, who is recovering from a bulging disk in his back, threw from 60 feet . . . Pedro Ciriaco is a couple of days from returning because of back spasms.
■ AROUND THE BASES: McKechnie Field was the site of the Boston Braves’ final spring training in 1952. It has been refurbished many times and remains a gem . . . The game included a 48-minute rain delay at the start . . . Two former Sox draft picks, Pedro Alvarez and Sanchez, were in the Pittsburgh lineup. Neither player signed with the Sox . . . Mark Melancon, acquired by the Pirates from the Sox in the Joel Hanrahan deal, struck out two, but hit a batter and walked one in a scoreless inning . . . 7,804 attended the game.
■ NEXT GAME: The Sox host the Orioles Tuesday at 1:35 p.m. Ryan Dempster will face lefty Brian Matusz.