NFL Network Insider Ian Rapoport reported the big DT, who started 30 of a possible 32 games for Dallas the last two seasons, broke his foot Thursday while participating in the offseason conditioning program. A timeline for the third-year pro is unclear, Rapoport added.
Back in the spring of 2016, Collins suffered a similar injury, breaking his right foot in Cowboys OTAs. The break required surgery, but the former third-round pick was back in time for the start of the regular season.
In 32 career games, Collins has logged 7.5 sacks, including five as a rookie.