Pittsburgh Pirates (13-13, fourth in the NL Central) vs. San Francisco Giants (12-14, fourth in the NL West)San Francisco; Friday, 10:15 p.m. EDTPITCHING PROBABLES: Pirates: Quinn Priester (0-1, 8.31 ERA, 1.85 WHIP, two strikeouts); Giants: Kyle Harrison (2-1, 5.00 ERA, 1.33 WHIP, 24 strikeouts)BETMGM SPORTSBOOK: LINE Giants -149, Pirates +125; over/under is 8 1/2 runsBOTTOM LINE: The San Francisco Giants host the Pittsburgh Pirates to open a three-game series.San Francisco is 7-6 at home and 12