The St. Louis Cardinals just finished up what has been their toughest stretch of the season so far. They had 16 games in 17 days and went 9-7 against teams like the Seattle Mariners, Pittsburgh Pirates, Los Angeles Dodgers, Milwaukee Brewers and San Diego Padres, all teams above .500 and all teams that are in playoff contention. However, that doesn't mean that the Cardinals won't end up selling at the trade deadline. Because of their plans to rebuild under Chaim Bloom, it's hard to imagine St. Louis targeting any players that would improve the major league roster, as that is not what they are planning on doing. Instead, they have players that other teams are going to show a lot of interest in. Because of his hot start to the season, closer Riley O'Brien is a going to be a clear trade target for a lot of teams in playoff contention. Riley O'Brien a clear Cardinals trade target May 2, 2026; St. Louis, Missouri, USA; St.…