The Cowboys got through their fourth practice of 2018 training camp. We yearn to deliver the goods here at BTB so here’s what we definitively learned at the team’s practice today: The Cowboys are absolutely desperate to keep Tyron Smith healthy. First, Smith was excused from practice Friday, so he could participate in back-to-back practices on Saturday and Sunday. On Sunday, Smith participated in only half of the first team reps, with Cameron Fleming taking the other reps. It’s obvious the team is doing everything they can to avoid a repeat of what happened in 2017 when the team’s offense ground to a halt without their All World left tackle.