Witten caught a one-yard touchdown pass on his only target in Sunday's 35-31 loss to the Chiefs.
Witten caught two passes on as many targets for 21 yards in Sunday's 16-6 win over the Browns.
Witten caught both of his targets for six yards in Sunday's 40-32 win over the Chiefs.
Witten turned his only target into a two-yard reception during the Raiders' Week 1 win over the Panthers on Sunday.
Witten will sign a one-year deal with the Raiders, Adam Schefter of ESPN reports.
Witten isn't expected to re-sign with the Cowboys, Clarence E. Hill Jr. of the Fort Worth Star-Telegram reports.
Witten wants to play football in 2020 and is open to signing with a new team, ESPN.com's Todd Archer reports.
Witten completed the 2019 season with 63 catches on 83 targets for 529 yards and four touchdowns.
Witten caught four of five targets for 36 yards and a touchdown in Sunday's 44-21 win over the Rams.
Witten caught six of eight targets for 42 yards and a touchdown, adding a two-point conversion, in Thursday's 26-15 loss to the Bills.