Lucas Harrell has been the Astros’ best overall pitcher this season. The righthander will receive one of his biggest early-year tests when he faces the Detroit Tigers at 6:10 p.m._ Saturday at Minute Maid Park. Harrell (3-2, 3.60 ERA) is 3-0 in his last four starts with a 1.82 ERA. He’s only allowed five earned runs in his last 24 2/3 innings and holds a career 2.87 ERA in 19 home starts. Tigers righty Max Scherzer (3-0, 4.02) has been solid this season but has allowed eight runs and 13 hits in his last two starts. Detroit has won the first two contests of the four-game series. Both have been [...]