D-backs Swap in Rookie Right-hander Slade Cecconi for Infielder Jace Peterson for NLCS

The Arizona Diamondbacks have adjusted their 26-man roster for the National League Championship Series against the Philadelphia Phillies, adding rookie right-hander Slade Cecconi and leaving off infielder Jace Peterson.

Cecconi, 24, made his MLB debut in September and pitched in three games, posting a 3.00 ERA and striking out 10 batters in 9.0 innings. He is a hard-throwing pitcher with a fastball that can reach the upper 90s and a sharp slider.

Peterson, 32, was a valuable utility player for the D-backs in the regular season, hitting .274 with 11 home runs and 46 RBIs in 142 games. However, he struggled in the NL Wild Card Series against the Milwaukee Brewers, going 0-for-10 with five strikeouts.

The D-backs' decision to swap out Peterson for Cecconi is likely a reflection of their desire to add more pitching depth to their roster. The Phillies have a deep and dangerous lineup, and the D-backs will need all the arms they can get to try to slow them down.

Cecconi could be used in a variety of roles for the D-backs in the NLCS. He could start a game, be used as a long reliever, or even pitch in high-leverage situations. His versatility and upside make him a valuable addition to the D-backs' roster.

Peterson's omission from the NLCS roster is a bit of a surprise, but it is understandable given his recent struggles. He was a valuable player for the D-backs in the regular season, but they need to go with the players who are giving them the best chance to win in the postseason.

Overall, the D-backs' decision to swap out Peterson for Cecconi is a wise one. Cecconi gives the D-backs more pitching depth and versatility, which will be crucial in the NLCS against the Phillies.