The Vikings waived McNitt on Saturday, Courtney Cronin of ESPN.com reports.
McNitt hitting the road makes C.J. Ham the Vikings' starting fullback.
The Vikings claimed McNitt off waivers from the Falcons on Tuesday, Andrew Krammer of the Minneapolis Star Tribune reports.
After FB Johnny Stanton (lower leg) was placed on injured reserve, McNitt and Kobe McCrary were brought in to compete with C.J. Ham for the starting fullback job. McNitt will need to learn the playbook quickly for Friday's preseason game against the Seahawks.
McNitt was waived by the Falcons on Monday, Will McFadden of the team's official site reports.
McNitt apparently hasn't shown enough to stick around in Atlanta any longer. The Falcons signed Jalston Fowler to take his place on the 90-man roster.