Matthew Stafford is entering the final year of a three-year, $53 million extension, but is expected to reach a new deal with the Detroit Lions soon.

An agreement could come before the Lions open training camp on July 31.

Lions president Ron Wood recently suggested he's comfortable making Stafford the highest-paid player in the NFL.

Armonty Bryant has been suspended four games for violating the NFL Policy and Program for Substances of Abuse, the Detroit Lions announced.

The pass rusher was suspended twice last season for violating the NFL policy on performance enhancing drugs (four games) and violating the league's policy on drugs of abuse (three games).

Calvin Johnson has received an invitation from the Detroit Lions to attend their training camp next month.

Johnson has expressed displeasure over the past few months with his departure from the club upon his retirement in March 2016.

Johnson cited injuries as the main reason for why he walked away from the game.

Earlier this month during a news conference in Italy, Johnson said the team's lack of success was also a contributing factor to his early retirement. During a news conference with Italian reporters, he brought up the idea of superteams when he was asked if he thought about switching teams.

"Of course, I thought about it," he said. "Just like in basketball, you know, guys, they create these superteams. But it's not quite like that in football where I had the freedom just to go.

"I was stuck in my contract with Detroit, and they told me they would not release my contract, so I would have to come back to them. I didn't see the chance for them to win a Super Bowl at the time, and for the work I was putting in, it wasn't worth my time to keep on beating my head against the wall and not going anywhere."

Calvin Johnson spoke candidly about his decision to retire after the 2015 season, admitting the Detroit Lions' inability to compete for a Super Bowl played a role in his decision. 

Johnson was asked if he ever considered changing teams.

"Of course, I thought about it," he said. "Just like in basketball, you know, guys, they create these superteams. But it's not quite like that in football where I had the freedom just to go.

"I was stuck in my contract with Detroit, and they told me, they would not release my contract, so I would have to come back to them. I didn't see the chance for them to win a Super Bowl at the time, and for the work I was putting in, it wasn't worth my time to keep on beating my head against the wall and not going anywhere.

"It's the definition of insanity," Johnson added.

Asked again if playing for the Lions was the reason he retired, Johnson said: "Yes, and the body."