Cardinals vs. 49ers Prediction: Week 3 Odds, Picks & Best Bet

Our Arizona Cardinals vs. San Francisco 49ers prediction for Week 3 includes our best bet, projected score, and the latest odds for Sunday’s matchup.
Brock Purdy attempts a pass as we make our best Cardinals vs. 49ers prediction
Brock Purdy attempts a pass as we make our best Cardinals vs. 49ers prediction. Photo by Kirby Lee-Imagn Images.
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New season, same injury issues for Kyle Shanahan’s team as I offer my Cardinals vs. 49ers prediction for Sunday’s game at Levi’s Stadium in Santa Clara, Calif. (4:05 p.m. ET, FOX). 

The 49ers are the 7.5-point betting favorite despite injuries to some key starters. I’m backing the Over, believing the 49ers’ defensive absentees will help the teams combine for at least 48 points. 

The analysis below is part of our NFL Week 3 predictions.


🏈 Cardinals vs. 49ers picks & predictions

See all of our experts' NFL picks for Week 3 based on the latest NFL odds.

Pick Bet size
49ers -7.5 (-110 via FanDuel) 0.50 Units
Over 47.5 (-120 via FanDuel) 1 unit

Total wagered: 1.5 units | Max profit: +1.29 units


💰 Cardinals vs. 49ers prediction & best bet

Over 47.5 (-120 via FanDuel)

Brock Purdy is on fire, tossing five TDs and one pick in two sublime performances. While the litany of injuries to the 49ers receiving corps is concerning, I’m confident any professional football player can catch Purdy’s passes in his current form.

It helps that he’s facing a Cardinals team with the 23rd-ranked defensive EPA per play. Meanwhile, the Cardinals offense should have a better chance of scoring thanks to the 49ers’ decimated defensive line.

Nick Bosa joins Romello Height and James Thompson Jr. on the treatment table. Surely, Jacoby Brissett and his offense, which ranks 13th in DVOA thanks to scoring 26 points against the disappointing Los Angeles Chargers, can take advantage of this rare opportunity.

📡 SBR Edge

Brock Purdy leads the NFL in total QBR (96) and completion percentage (80%), and he hasn’t thrown an incompletion due to an over or underthrown pass.

49ers compromised pass rush

The 49ers have the fifth-highest pressure percentage (31.6) and the fourth-highest QB knockdown percentage (17.6). With three frontline starters out, they could struggle to consistently get to Brissett, who has been pressured on 24.3% of his dropbacks. 

A cleaner pocket should lead to a higher completion percentage and more opportunities to move the ball downfield, even if the 49ers drop deeper.

Score prediction: 49ers 31, Cardinals 21


📊 Cardinals vs. 49ers odds

See the latest NFL odds for every Week 3 matchup.

Cardinals vs. 49ers opening odds

  • Moneyline: Cardinals +360 | 49ers -474
  • Spread: Cardinals +8.5 (-108) |49ers -8.5 (-110)
  • Over/Under: Over 47.5 (-110) | Under 47.5 (-108)

📺 How to watch Cardinals vs. 49ers: Week 3

  • Date: Sunday, Sept. 27
  • Kickoff: 4:05 p.m. ET
  • Location: Levi’s Stadium (Santa Clara, Calif.)
  • TV: FOX
  • Streaming: Fubo

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