Sources: 49ers trade for Colts' Keenan Allen to bolster injury-plagued WR room

The 49ers have acquired Keenan Allen from the Indianapolis Colts in exchange for a 2027 sixth-round draft pick, giving Brock Purdy a veteran target as San Francisco tries to navigate a receiver room depleted by injuries. The move is complete, according to reports from NFL Network’s Ian Rapoport and ESPN’s Adam Schefter, and it arrives with the 49ers holding the NFC’s best record at 7-1 entering Week 10.

That record is the first complication in what otherwise looks like a tidy deadline fix. San Francisco’s offense has continued to function despite missing Mike Evans, Deebo Samuel, Christian Kirk, De’Zhaun Stribling and Ricky Pearsall. Through Week 9, the 49ers ranked sixth in the NFL in passing yards per game at 376.8 and third in points per game at 29.4. Against the Raiders, Jordan Watkins led five receivers with 86 yards on four catches, while the team produced two passing touchdowns, two rushing touchdowns and a defensive touchdown for the first time since 2022. Allen is insurance for a group that has absorbed a remarkable run of attrition, not a solution to an offense that had stopped working.

Allen’s immediate role is likely to be specific rather than spectacular. He caught 40 passes for 351 yards and one touchdown in eight games for Indianapolis, and his 40 receptions would lead the 49ers’ receiving corps this season. Sports Illustrated’s analysis points to his value on throws under 10 air yards: he has caught 31 of 38 such targets for 230 yards and a touchdown, seventh-most in that category among wide receivers. That profile fits the role Evans had occupied, providing San Francisco with a dependable option on quick passes, short-yardage situations and throws near the goal line. It also suggests Allen is meant to complement Watkins rather than displace him.

The sixth-round price is modest, but the Colts’ motives are harder to dismiss. A to Z Sports’ trade simulator leaned slightly toward the Colts, while Sports Illustrated argued that San Francisco might have been better served by pursuing Josh Downs. The disagreement is revealing: Allen offers a cheaper, more predictable short-yardage role, while Downs was viewed as the receiver capable of making a larger offensive impact.

Allen’s history also explains both the appeal and the caution. The six-time Pro Bowler spent 12 of his 14 NFL seasons with the Chargers, finishing behind only Antonio Gates in franchise receptions, with six 1,000-yard seasons and five 100-catch seasons. He is 34, and San Francisco already depends on older receivers with injury histories. The 49ers’ willingness to add another such player has drawn criticism from fans, but the team’s own track record complicates a simple age-based objection: seven players aged 30 or older have caught touchdowns for San Francisco this season, a total exceeded only by the 1998 Broncos, 2007 Patriots and 2002 Raiders.

Evans is expected to miss several more games with an Achilles issue, while Samuel’s hamstring injury may keep him out of the Week 10 game against Dallas. Allen gives the 49ers a plan for those absences, but not a guarantee that he will be on the field to execute it.