The Chicago Cubs optioned Javier Assad to Triple-A Iowa on Sunday, August 16, to clear a roster spot for right-hander Edward Cabrera, who was coming off the IL after nearly eight weeks with a left hamstring strain. On paper, the move made sense. In practice, it lasted about as long as the drive to Iowa: ESPN reported just 19 hours later that the Cubs were already calling Assad back to start Tuesday, August 18, against the Tampa Bay Rays.
Why Assad went down — and why he came right back up
Cabrera had looked sharp in his rehab stint, striking out 11 batters across 5.2 combined innings before throwing five clean innings with seven strikeouts at Double-A Knoxville on August 11. The Cubs needed the active roster spot, and Assad drew the short straw despite carrying a 6-1 record and a 3.59 ERA into the demotion.
What changed overnight: starter Matthew Boyd left with biceps discomfort, and Cade Horton landed on the injured list with a forearm issue. Suddenly a rotation that already ranked among the worst in baseball — fourth-lowest combined ERA in the NL at 4.29 — needed a reliable arm who could take the ball and go deep. Assad was the obvious answer.
Why Assad is the most trusted arm in that rotation
The numbers back up the confidence manager Craig Counsell has shown in him. In 2026, Assad has made 21 appearances — 10 as a starter — covering 80.1 innings, posting a 3.59 ERA and a 1.12 WHIP. He’s walked just 21 batters all season, a BB% that sits at the 81st percentile in MLB. He doesn’t miss many bats — his whiff rate and strikeout rate are both near the bottom of the league — but he consistently limits hard contact: opponents are hitting just .234 against him, his average exit velocity allowed is 90 mph, and his barrel rate allowed is 7.4%.
One number fans should keep in mind: his xERA is 4.63, meaning the expected ERA based on the quality of contact he’s allowed. The gap between that figure and his actual 3.59 suggests some good fortune on hit timing, or that Chicago’s defense has bailed him out more than usual. Either way, he’s the arm the organization reaches for first when they need someone stretched out and ready to start.
For comparison, Cabrera — the pitcher Assad temporarily made room for — carries a 5.10 ERA across 14 starts with Chicago this season, well off the 3.53 he posted with the Miami Marlins in 2025.
A little historical context
Assad is the all-time Cubs leader in wins, innings pitched, and games played among pitchers born in Mexico. The overnight trip to Iowa doesn’t change that.
What comes next for Assad and the rotation
If the recall holds for Tuesday, Assad will make his 11th start of the season against Tampa Bay. The Cubs are fighting for a National League Wild Card spot, but their rotation has combined for just 3.9 fWAR in 2026 — fourth-worst in the majors. The long-term outlook for Boyd and Horton will determine whether Assad settles into a permanent rotation spot or returns to his swingman role once bodies get healthy.
Back in May, Counsell explained that the plan was always to keep Assad stretched out as an emergency starter. In August, that plan is working exactly as designed — the Cubs just needed to cash in the insurance policy a little faster than anyone expected.
Assad’s 2026 numbers at a glance
- Record: 6-1 | ERA: 3.59 | WHIP: 1.12 | xERA: 4.63
- Appearances: 21 (10 starts) | Innings: 80.1
- Strikeouts: 53 (K% 16.5) | Walks: 21 (BB% 6.5, 81st percentile)
- Avg exit velocity allowed: 90 mph | Barrel rate allowed: 7.4%
- Opponent batting average: .234
- Fastball: 92.5 mph avg, 2,079 rpm spin rate
- Whiff rate: 14.4% (1st percentile) | Hard-hit rate allowed: 6th percentile
