Johnson signed with the Patriots on Tuesday, ESPN Boston's Mike Reiss reports.
A 2012 UDFA, Johnson has spent time with the Eagles (2012 and 2013) and Texans (2014), catching 52 passes for 601 yards and a touchdown on 83 targets. He could provide help in the slot and/or the return game, but his role will largely depend on the health of New England's other receivers. Should Danny Amendola (knee) miss another week, Johnson might have a surprisingly large role in the offense. However, it's hard to imagine Johnson making much of an impact if Amendola is able to play against the Eagles.