The Bears are expected to agree to terms on a four-year contract with speedy slot receiver Taylor Gabriel, the third weapon they will have added to an offensive attack that is decidedly more dangerous than it was just 24 hours ago.

Gabriel’s deal, like those of Pro Bowl wide receiver Allen Robinson and pass-catching tight end Trey Burton, do not become official until the league year begins at 3 p.m. Wednesday.

The 5-foot-8, 165-pound Gabriel ran a wind-aided 4.27 40-yard dash at his pro day at Abilene Christian in 2014, and he has shown a knack for big plays, especially in 2016, his first of two seasons in Atlanta. That year he helped the Falcons get to the Super Bowl, scoring six touchdowns on just 35 receptions and 50 targets, while averaging 16.5 yards per catch. His production dropped last season to 33 catches for 378 yards (11.5-yard average) and one touchdown.

The 27-year-old Gabriel was originally signed as an undrafted free agent by the Browns in 2014 and caught 36 passes for 621 yards (17.3-yard average) and one touchdown as a rookie. In his second year in Cleveland, Gabriel caught 28 passes for 241 yards and an 8.6-yard average with no touchdowns. He also has 16 career rushing attempts for 110 yards, a 6.9-yard average.