Glasnow (2-6) surrendered seven runs (six earned) on 10 hits over four innings while striking out only one in Friday's 12-7 loss to the Marlins.
He served up multiple homers for the second straight start, and there have been few signs of progress from the 23-year-old through his 12 outings this season. With Jameson Taillon (groin) set to return next week, the Pirates could use that as an excuse to send Glasnow back to Triple-A Indianapolis to try and get himself straightened out, but if he remains in the rotation his next start will likely come Friday at home against the Cubs.