The full list of tryouts for the Bills includes:
Jones, 28, is a former fourth-round pick by the Steelers in the 2013 NFL Draft. He finished out the final year of his four-year rookie contract and returned to Pittsburgh on a two-year contract last offseason.
However, the Steelers elected to release Jones coming out of the preseason and they trimmed their roster down to 53 players.
Jones has worked out for a number of teams in recent weeks, including the 49ers, Patriots, Cowboys, Lions and Jaguars.
Earlier this week, Adam Schefter reported that Jones is expected to sign with a new team soon.
In 2017, Jones appeared in three games for the Steelers and recorded 23 completions on 28 attempts (82.1 percent) for 239 passing yards, one touchdown and one interception.
Fowler, 27, wound up signing on with the Broncos as an undrafted free agent out of Michigan State in May of 2014. He wasn’t able to make the 53-man roster during his rookie season, but later wound up on their practice squad and returned on a future/reserve contract.
The Broncos brought Fowler back on one-year exclusive rights deals each of the past two years. However, Denver declined to tender him a contract as a restricted free agent this offseason and he later signed on with the Bears. Chicago, unfortunately, released him coming out of the preseason.
Fowler had a brief stint with the Patriots last month.
In 2017, Fowler appeared in all 16 games for the Broncos and caught 29 passes for 350 yards receiving and three touchdowns.