It's unclear if the deal includes an invitation to big-league camp. Rowley spent the majority of the 2018 campaign at the Triple-A level, posting a combined 3.34 ERA and 1.38 WHIP across 24 starts (142.2 innings). He's struggled in a pair of brief major-league stints over the past two seasons, compiling a 7.91 ERA in 19.1 innings (three starts, five relief appearances).

Rowley will stick with the Express after passing through waivers unclaimed. The 28-year-old spent most of the year at Triple-A, compiling a 3.34 ERA, 1.37 WHIP and 96:58 K:BB across 142.2 innings (24 starts) combined between Buffalo and Round Rock. Rowley owns a 7.91 ERA and 1.91 WHIP across 19.1 career big-league innings.

Rowley has thrown 19.1 career major-league innings with an ERA of 7.91. He's spent the majority of the season with Triple-A Buffalo, where he had a solid 3.30 ERA in 17 starts. His underlying numbers don't back up that ERA, though, as his 14.5 percent strikeout rate and 9.6 percent walk rate are each poor, leading to a 4.89 FIP.

Rowley was called up Saturday to make his season debut. He made two appearances over the weekend in Boston, allowing four runs (three earned) on two hits and a walk in a combined 0.2 innings. He'll head back to Buffalo to await his next opportunity.