Seneca Wallace has signed with the San Francisco 49ers.

Wallace did not play in the NFL last season, but the 49ers are looking for a reliable backup quarterback to Colin Kaepernick.

Colt McCoy has lost traction as the No. 2 quarterback, while Scott Tolzien and B.J. Daniels have not taken control of the spot either.

Mohamed Massaquoi has agreed to a deal with the New York Jets.

Massaquoi was previously released this week by the Jacksonville Jaguars.

Massaquoi occasionally looked to be on the verge of breaking out at wide receiver during his tenure with the Cleveland Browns.

Sean Lee and the Dallas Cowboys have agreed upon an extension that could be worth as much as $51 million and run through 2019.

Lee will receive a $10 million signing bonus.

Lee was scheduled to make $630,000 in the final season of his rookie contract, but now will earn $16.13 million over the next two seasons.

Lee played in just six games last season due to a toe injury.

Jairus Byrd signed his one-year, $6.9 million franchise tender with the Buffalo Bills on Tuesday.

Byrd, a two-time Pro Bowl selection at safety, missed all of the Bills' offseason workouts and nearly all of training camp.

The Bills can prevent Byrd from entering free agency one more offseason, but both sides have attempted to get a long-term deal done.

The New England Patriots have signed tight end Evan Landi.

Landi was originally signed by the Tampa Bay Buccaneers after going undrafted out of South Florida.

At 6-foot-3, 236 pounds, Landi is considered a versatile player who was at-times split out as a receiver during his college career. 

Dallas Clark has agreed to sign with the Baltimore Ravens.

Clark will reunite with offensive coordinator Jim Caldwell.

Clark caught 47 passes for 435 yards and four touchdowns last season with the Tampa Bay Buccaneers.

The Baltimore Ravens have signed Brandon Stokley to a one-year deal.

Stokley caught 45 balls for 544 yards and five touchdowns with the Denver Broncos last season.

Stokley played the first four seasons of his career with the Ravens.

The Oakland Raiders have signed Jon Condo to a three-year contract extension.

Condo is a two-time Pro Bowler and has handled long-snapping duties for the Raiders in each of the past six seasons.

Sebastian Janikowski has signed a five-year deal with the Oakland Raiders worth just under $19 million.

Janikowski will have $8 million guarantees and will ensure he remains the highest-paid kicker or punter in the NFL.

Janikowski turned 35 in March, but is expected to remain one of the NFL's best kickers.

Austin Collie has signed with the San Francisco 49ers.

The 49ers have been seeking depth at receiver since Michael Crabtree tore his Achilles' tendon in the offseason.

Collie also tried out with the 49ers in June.

Collie had suffered four concussions since 2010 when he suffered a torn patella tendon in 2011.