Street (knee) is making his 2017 Cactus League debut Friday, Jeff Fletcher of The Orange County Register reports.
Coming off a 6.45 ERA during (surprise) an injury-shortened 2016, Street is battling for the closer role with Cam Bedrosian (groin) and Andrew Bailey, among others. His body of work and name recognition may land him the job initially, but it's wise for fantasy players to remain skeptical, especially considering his health issues and the talent Bedrosian boasts when healthy.
Mack suffered a hairline fracture in his left fibula during the NFC championship game against the Packers, although the injury ultimately wasn't enough to keep him from taking part in the Super Bowl. Fortunately, he recovered in time for the start of the start of the Falcons' OTAs, which begin May 30.
Zunino was recalled from Triple-A Tacoma on Monday.
While Zunino slashed an impressive .293/.356/.707 with five homers and a 5:4 K:BB in 12 games with Tacoma after being demoted, this isn't necessarily anything new for the backstop. The 26-year-old owns a combined .267/.345/.524 triple slash across four seasons at Triple-A (153 games) spanning back to 2013, though he has yet to post a batting average above .215 at the major-league level. He still offers some serious pop as a catcher, but that won't figure to matter if he can't make consistent contact with the ball (he owns a career 32.7 percent strikeout rate in the majors). Given the Mariners options at catcher, Zunino should be in line for the majority of starts.
Sanchez accepted an optional assignment to Triple-A Toledo on Monday.
Sanchez has been dreadful out of the Tigers' bullpen this season, giving up 21 runs in as many innings of work. He'll head back to the minors to work out the kinks in his pitching, although his lengthy major-league experience could land him back in the big leagues fairly soon if he can figure things out against the decreased competition. Warwick Saupold was recalled to take his spot on the roster.