The Pittsburgh Pirates lost a close game to the Boston Red Sox 2-1 in grapefruit league action Friday. Joey Bart extended his on-base streak to 12 games by going 2 for 4 with a double. Jack Suwinski extended his four game hitting streak going 1 for 3 with a stolen base. Mitch Keller faced 10 batters giving up one hit in 3 innings. The Pirates host the Baltimore Orioles Saturday at 1:05. Paul Skenes is expected to start.