Cease (4-4, 3.02 ERA) against Castillo (3-6, 4.93 ERA) — first pitch 7:10 PM PT. On paper, Cease is the clear edge: AL leader with 128 strikeouts through 15 starts, at least 7 punchouts in each of his last 8 starts, and a legitimate Cy Young conversation attached to his name. But his last outing was ugly — 4 earned runs in 4.2 innings against Texas, 5 walks, 107 pitches, a loss. When Cease is off, he is really off.
Castillo's 4.93 ERA is a legacy number from a brutal April stretch where he was posting an 8.06 ERA and looking every bit like a trade deadline salary dump. Then something clicked. Over his last 6 starts, he is pitching to a 2.67 ERA with a 0.82 WHIP over the last 4 — and his most recent outing against Cleveland was a 6-inning, 1-run job on just 91 pitches. The guy who looked unplayable in April is quietly one of the better starters in the AL right now.
Seattle's big pregame question is Julio Rodriguez, who is in concussion protocol after taking a thrown ball to the back of the helmet Thursday night against the Angels. Victor Robles also left that same game with a right forearm issue — X-rays came back negative and he is day-to-day, but neither is a lock to play tonight. Losing J-Rod for even one game is not trivial for a Mariners lineup that already had Rob Refsnyder sidelined. The Blue Jays have their own lengthy injury ledger — Jose Berrios had Tommy John surgery in May, Bowden Francis is out, Addison Barger has a back stress reaction, and Anthony Santander (shoulder) has been on the 60-day IL since spring. Toronto's rotation depth behind Cease is essentially a construction zone.
- 10-Day-ILAddison Barger RF — Blue Jays manager John Schneider said Monday that Barger (elbow) will be shut down for a couple of weeks after a recent MRI revealed a stress reaction in his back, Keegan Matheson of MLB.com reports.
- 10-Day-ILJesus Sanchez RF — The Blue Jays placed Sanchez on the 10-day injured list Saturday with a right ankle sprain.
- 10-Day-ILLenyn Sosa 2B — Sosa (wrist) will begin a rehab assignment Monday with the Blue Jays' Arizona Complex League affiliate, Mitch Bannon of The Athletic reports.
- 15-Day-ILMax Scherzer SP — Scherzer (back/side) will begin a rehab assignment with High-A Vancouver on Friday, Shi Davidi of Sportsnet.ca reports.
- paternityGeorge Springer DH — Springer (personal) will serve as the Blue Jays' designated hitter and hit leadoff in Sunday's game against the Rangers.
- 60-Day-ILYimi Garcia RP — Blue Jays manager John Schneider said Monday that Garcia (elbow/neck/biceps) has resumed playing catch, Shi Davidi of Sportsnet.ca reports.
- 60-Day-ILAnthony Santander RF — Santander (shoulder) could resume hitting within the next week, Arden Zwelling of Sportsnet.ca reports.
- 60-Day-ILJoe Mantiply RP — Mantiply will undergo arthroscopic surgery to repair some damage in his left knee, Arden Zwelling of Sportsnet.ca reports.
- Day-To-DayVictor Robles RF — X-rays on Robles' injured right forearm came back negative Thursday, Daniel Kramer of MLB.com reports.
- Day-To-DayJulio Rodriguez CF — Rodriguez is in concussion protocol and will be reevaluated Friday, Daniel Kramer of MLB.com reports.
- 10-Day-ILBrendan Donovan 3B — Donovan (groin) ran sprints on the field Monday and will be re-evaluated after the Mariners' homestand to determine whether he's ready to begin a rehab assignment, Ryan Divish of The Seattle Times reports.
- 10-Day-ILRob Refsnyder DH — The Mariners placed Refsnyder (knees) on the 10-day injured list Monday, Adam Jude of The Seattle Times reports.
- 15-Day-ILCooper Criswell RP — Criswell was diagnosed with a Grade 1-plus pectoral strain Tuesday, Daniel Kramer of MLB.com reports.
- 15-Day-ILMatt Brash RP — General manager Justin Hollander said Tuesday that Brash was diagnosed with a Grade 1 strain in his right lat, Shannon Drayer of SeattleSports.com reports.
- 60-Day-ILCarlos Vargas RP — Mariners general manager Justin Hollander said Tuesday that Vargas (lat) recently began a throwing program and could be ready to return from the 60-day injured list around the Aug. 3 trade deadline, Zac Hereth of 710 AM Seattle Sports reports.
- 60-Day-ILWill Wilson 3B — Wilson (thumb) has gone 3-for-9 with two RBI and a 1:2 BB:K in his first three rehab games between High-A Everett and Triple-A Tacoma.
The Blue Jays at 41-46 are not playing for anything urgent right now — they are a team trying to find reasons for optimism in a year that has gone sideways. Cease is the most compelling reason, and he will be motivated after getting knocked around in his last start. Seattle at 45-43 is in the hunt and has genuine momentum after sweeping the Angels, including a 1-0 shutout win on Friday. The Mariners are playing crisp baseball at home, and Castillo's resurgence could not be better timed. Whether this game lives up to the billing on a July 4 night in the Pacific Northwest depends almost entirely on which Cease shows up.