The Arizona Diamondbacks spring training roster: A viewer's guide, Part 5

Carlos Rivero

Fun fact. No players in the entire history of baseball have a better OPS than the 27-year-old Venezuelan, and as many or more PAs. The bad news? That number of PAs. is just eight. Rivero went 4-for-7 with a home-run (above) in his very brief major-league time with the Red Sox in 2014, after Xander Bogaerts went on the concussion DL, making Carlos a lifetime .571/.625/1.286 hitter, with a 1.911 OPS to this point. Some regression should probably be expected... Not least because last year in AAA, between Boston and Seattle, his line was a much more forgettable .254/.299/.355. Originally a shortstop, he was almost exclusively a 3B in 2015.

Zach Borenstein

Thank you, Tony Campana and Joe Thatcher. For Borenstein was one of the two prospects received from the Angels in exchange for that pair in a July 2014 trade. Borenstein had been the California League MVP in 2013, clubbing 28 home-runs for High-A Inland Empire. He also put up good numbers with Double-A Mobile last year, batting .314 with 10 HR in 85 games, but an early-season promotion to Reno didn't go well, Zach batting .154 over 18 appearances with the Aces. The left-fielder may get a more extended look there thus year, the 25-year-old now being close to long in the tooth for Double-A. Here's an interview with him from August.

Jason Bourgeois

[Insert anarcho-syndicalist joke here] The 34-year-old veteran brings eight seasons of major-league experience to the table, most recently with the Cincinnati Reds, for whom he appeared 68 times last year, hitting .240. He had a career-high three home-runs, which probably tells you something. He achieved some notoriety for an August game against the Royals, where he forgot how the infield fly rule worked. In their end of season review, our colleagues at Red Reporter's headline for Bourgeois was, "Because the alternatives were disastrously bad," which probably tells you something else. Probably this year's coal-mine canary: if we see him, something has gone very wrong.

Todd Glaesmann

The strange career of Glaesmann continues. He was the PTBNL in the Heath Bell/David Holmberg trade with the Rays and Reds, but just a couple of months later, was placed on the "Voluntarily Retired" list in February 2014 saying, "Although the decision was not easy it was best move for me. The passion for the game was not there anymore." However, after another four months, he was back in the game with Low-A Hillsboro - and now, here he is in major-league camp, having hit .278 with 19 home-runs across three levels last year.. Whatever his issue was, I'm glad he appears to have rediscovered that passion, and at 25, still has time to make it.

Evan Marzilli

The only one of this batch who was actually drafted by the Diamondbacks, Marzilli was an 8th-round pick in 2012, but missed more than three months last year after spraining his ankle - though did move in with Jake Lamb and Archie Bradley! Across the abbreviated campaign, in which he managed only 49 appearances, Evan hit .276 with a .748 OPS; he will also turn 25 next month; but with the AZ outfield looking fairly set, he's going to have to stand out if he is to progress further. Seems to be a bit of a guitar player - shame he's too late to join Bronson Arroyo's supergroup! Here's Marzilli playing the National Anthem while a freshman at South Carolina, back in 2010.