The Dallas Cowboys return to Oxnard, CA, for training camp next month (July 28). They’ll spend two weeks there before joining the Los Angeles Rams for joint practice on August 11; the New Orleans Saints will join the Cowboys in Oxnard for another joint practice the following week (Aug. 18). The Cowboys previously hosted the Rams last year. The Rams have proverbially won the offseason, with trades for Arlington’s Myles Garrett, who is coming off …