Joint practices are popular in the NFL, as they give teams a unique opportunity to prep alongside opponents. These types of practices involve one team visiting another's practice field, with coaches and players mingling,

On Wednesday, the league published the joint practices timeline, which will run from Aug. 5 through Aug. 21. Teams are allowed to conduct up to four joint practices and typically share training grounds leading up to a preseason game. However, league rules forbid teams from having joint practices the day before the tune-up matches.

All teams will be back on the field for training camp by July 23 at the latest. The first team to report is the Los Angeles Chargers, who are requiring their rookies to arrive Jul