Red Sox pitcher Joe Kelly took the loss Saturday, allowing six earned runs on four hits and seven walks in 5 2/3 innings while striking out three in his team's 7-1 defeat against the Blue Jays.

Kelly (1-2) has now given up five earned runs or more in each of his last four starts, but he had issued just eight walks in his first five starts combined before unraveling Saturday.

"Despite the number of walks early on, we're in a two-run game," Red Sox manager John Farrell said. "But still, puts a couple of guys on via the walk, and then the third consecutive breaking ball to Encarnacion kind of spreads things to a five-run game."

He also allowed a home run for the fifth straight start.

"The one that really hurt us was the three-run homer," Kelly said after allowing a season-high six earned runs. "Hanging breaking ball ... just a bad pitch overall."

Kelly owns a 6.35 ERA and 34:15 K:BB ratio in 34 innings. He's scheduled to face the Mariners Thursday in Seattle.