The 34-year-old right-hander, who agreed to a $1.75M deal, was 3-4 with two saves and a 5.31 ERA in 63 games for Detroit last season, striking out 70 and walking 25 in 59⅓ innings.
The first inning of the game against the Red Sox was delayed for about 10 minutes as medical personnel attended to the fan. He appeared to be OK but was taken to the hospital for treatment.