Trautman (knee) was diagnosed Tuesday with a sprained MCL and is expected to miss 4-to-6 weeks, Adam Schefter of ESPN reports.
The Saints haven't provided confirmation of Trautman's injury, but the tight end is now set to miss time beginning with Thursday's game against the Bills, Nick Vannett, Garrett Griffin and Juwan Johnson are slated to handle the team's tight end duties in the coming weeks.