AP

Linebacker Courtney Upshaw launched his free-agency tour with a trip to visit the Jets. If he doesn’t sign there, other teams have interest.

Per a league source, the 49ers and possibly the Patriots represent other alternatives for Upshaw, who started 15 games in 2015 and, in all, 55 games in four seasons — including Super Bowl XLVII.

Upshaw, a second-round pick in 2012, has five career sacks and three forced fumbles. He is listed at No. 33 on the PFT Hot 100 free-agent list.