<p>Right-hander Sean Burke entered the White Sox’ series opener Friday against the Mariners at Rate Field on a tidy roll.</p><p>But things got messy for Burke and the Sox in a 12-8 loss, their third in a row.</p><p>In Burke’s previous three outings, he was 2-0 with a 0.93 ERA in 19⅓ innings. He had<br>allowed only two runs and 12 hits with 15 strikeouts and two walks during that span.</p><p>What’s more, Burke hadn’t yielded a run — only seven hits and a walk — in his last two appearances, both dominant outings. He tossed 7⅓ scoreless innings — his longest outing in the majors — behind an opener April 24 against the Nationals in a game that went to extra innings tied 0-0 at the Rate, then fanned eight Padres in six innings last Saturday in San Diego to lower his ERA to 2.72.</p><p>Burke kept it up with a 1-2-3 first inning against the Mariners, but an abrupt loss of command and some missed pitch locations doomed him.