In his first start since May 29, Athletics left-hander Rich Hill returned from a groin injury to throw six innings of two-run, four-hit ball and rack up six strikeouts against two walks Saturday. Several playoff contenders sent representatives to observe Hill’s outing against the Pirates, reports Susan Slusser of the San Francisco Chronicle. Incidentally, the Bucs were among the teams scouting him. In addition, four of the 36-year-old journeyman’s previous employers – the Orioles, Red Sox, Cubs andYankees – as well as the Dodgers and Royals were in attendance to watch Hill, who could be the best starter dealt before the Aug. 1 trade deadline. The free agent-to-be has been brilliant when healthy this year, recording a 2.31 ERA, 10.29 K/9, 49.7 percent ground-ball rate and 15.3 percent infield fly rate in 70 innings. Dating back to his four-start revival in Boston last September, the out-of-nowhere ace has put up a tremendous 2.09 ERA in 99 frames.