A handy guide to the top storylines, best players available and front offices under pressure ahead of this year's MLB trade deadline.

The Cowboys had interest in a trade for Raiders pass rusher Maxx Crosby. They might still have interest. Dallas attempted to acquire the five-time Pro Bowler in March. The Raiders instead sent him to the Ravens for two first-round picks before reneging on the deal because of long-term concerns about Crosby's surgically repaired left knee.