TORONTO -- As expected, Coco Crisp remained out of the A's lineup for Wednesday's game in Toronto and is doubtful for Thursday's series finale because of lingering soreness in his right calf.

"He's going to do some baseball activity out here today, so that's encouraging," manager Bob Melvin said. "But we want to make sure that when we do bring him back he's ready to go. I don't want to chance that, because any time there's a pull, especially in the legs, that's a big part of his game, and we want to be careful with that."

Crisp stole a career-high four bases on Saturday at Tampa Bay before the injury forced his departure in the ninth. He's tallied 10 stolen bases in his last seven games and has an American League-leading 37 on the season. Anything that could hamper those abilities, Melvin noted, will keep him sidelined.

"If he does feel it some," the A's skipper said, "I'm going to be reluctant to play him."

Magnuson relishing time in home country

TORONTO -- Big league rookies experience several firsts, but it's likely that one will easily rank higher than the rest by season's end for A's reliever Trystan Magnuson.

The 26-year-old righty, raised nearly 950 miles from Toronto in Winnipeg, Manitoba, is in the midst of his first visit to Rogers Centre, home to his childhood Blue Jays team and the same one that drafted him in 2007.

"It's been so awesome," Magnuson said. "I grew up watching the Blue Jays all the time. It's a team for the whole country, and it's a blast getting to come back here, and it being my first time to sit in the bullpen at the Rogers Centre. Getting the chance to compete against the team you grew up idolizing is fantastic."

Magnuson, part of a winter trade that sent Rajai Davis to the Blue Jays, remained a resident of Winnipeg until he was 11, at which point his family moved to Louisville, Ky. for his father's job. His baseball loyalties have since remained the same, though.

"Without a doubt, aside from the A's," he said, smiling. "And it was a thrill, obviously, being drafted by a Canadian team, but at the end of the day it's still just a thrill to be here. I still have a huge respect for the organization and everything, and I know so many of the guys, which makes it fun. That adds another element of excitement to it."

Magnuson made his first mound appearance on his home soil in the seventh inning Wednesday, giving up a run on two hits with one strikeout.

"I couldn't help but smile when the national anthem played," he said before the game. "I tried hard not to, but I just couldn't help it. I can't imagine what it would be like to be out on that mound."

Worth noting

• Toshiaki Nagahara, the A's Minor League trainer for the club's Arizona Rookie League team, has been named Athletic Trainer of the Year for the Arizona Summer League, as voted on by his peers.