The Astros said recently that Keuchel was dealing with a sprain, but the southpaw is said to have been hampered by plantar fasciitis in his left foot.
Keuchel was seen in a walking boot and recently admitted he slipped and fell during the World Series parade. Though it's unclear if the incident aggravated the injury, Keuchel is expected to be ready by spring training.
The foot issue might explain Keuchel's numbers in the second half of the season. The 29-year-old pitched to a 9-0 record and 1.67 ERA in the first half despite missing just under a month with a neck injury, but slipped to a 4.24 ERA, 29 walks, and a 1.38 WHIP in his final 12 starts.
He bounced back in the postseason, performing to a 3.58 ERA with only eight walks and 32 strikeouts in five starts (two in the World Series). Keuchel is slated to become a free agent after the 2018 season.
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