Valdes-Scantling caught two of four targets for 87 yards and a touchdown in Sunday's 35-14 win over the Browns.
Valdes-Scantling caught all three of his targets for 109 yards and two touchdowns in Sunday's 20-17 win over the Falcons.
The Saints signed Valdes-Scantling on Monday, Tom Pelissero of NFL Network reports.
Valdes-Scantling had a workout with the Saints on Saturday, Ian Rapoport of NFL Network reports.
The Bills released Valdes-Scantling on Tuesday, Ian Rapoport of NFL Network reports.
Valdes-Scantling hauled in one of his two targets for a seven-yard gain in Monday's 47-10 win over the Jaguars.
Valdes-Scantling didn't catch his only target in Thursday's 31-10 win over the Dolphins.
Valdes-Scantling (neck) is not listed on Wednesday's injury report and does not carry any injury designation for Sunday's regular-season opener against the Cardinals.
Valdes-Scantling (neck) participated in the portion of practice available to the media Wednesday, Sal Capaccio of WGR 550 Radio reports.
When asked about the chances of Valdes-Scantling (neck) and Curtis Samuel (turf toe) playing in Week 1, coach Sean McDermott expressed a degree of optimism, Alec White of the Bills' official site reports.