The Toronto Blue Jays placed left-hander Hyun Jin Ryu on the 10-day injured list Sunday with neck tightness.
General manager Ross Atkins told reporters he is hopeful Ryu misses just one start. Atkins said Ryu woke up with the tight neck Saturday, the day after his last start, against the Minnesota Twins, when he took the loss after giving up five earned runs and two home runs in two innings pitched.
Ryu (13-9) is tied for the team lead in victories but has has an 8.10 ERA over his past eight starts.
The Blue Jays recalled Tayler Saucedo from Triple-A Buffalo in a corresponding move.