On Friday the #Buffalo Bills executed two major trades [VIDEO], which involved them acquiring wide receiver Jordan Matthews from the Philadelphia Eagles. Unfortunately for them, Matthews has already gotten injured. Meanwhile, the #Los Angeles Chargers and #Green Bay Packers are both dealing with injuries to defensive starters from their first preseason games.

Matthews injured in first Bills practice

On Sunday, Jordan Matthews had his first practice as a member of the Buffalo Bills. Early in practice, he suffered an injury when he went up to make a contested catch and hit the ground hard, according to general manager Brandon Beane.

Matthews finished his practice session before leaving the field with a trainer to be looked at. Further tests revealed that the receiver has a chip fracture in his sternum and is considered to be week-to-week by the team. Head coach Sean McDermott said prior to the injury that he wanted to have Matthews play in Thursday's preseason game against his former team.

Perryman carted off in preseason game

Los Angeles Chargers starting middle linebacker Denzel Perryman suffered a left ankle injury in the first quarter of yesterday's preseason game against the Seattle Seahawks. He hobbled off the field but had to be taken to the locker room on a cart, later returning to the sidelines in a walking boot with crutches.

A source told ESPN's Adam Schefter that Perryman is expected to miss 4 to 6 weeks with his ankle injury but that the MRI he will be getting today would provide more clarity on the injury.

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Losing the former second-round pick would be a major blow to the Chargers, who have already lost second-round Forrest Lamp for the season and are without first-round pick Mike Williams.

Randall suffered concussion

Green Bay Packers starting cornerback Damarious Randall suffered a concussion during Thursday night's preseason game against the Philadelphia Eagles. Randall suffered the injury in the first quarter after Eagles receiver Bryce Treggs delivered a blow to his head. It is unknown how much time Randall will miss being in the concussion protocol, as the length varies depending on the player and how severely it affects them.

This is a blow for Randall, who was the team's first-round draft pick out of Arizona State in 2015. He missed six games last season with a groin injury. The Packers rookie second-round pick out of Washington, Kevin King, will now replace Randall's in the lineup.