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Most notable September call-ups

Maikel Franco bounced back after a slow start at Triple-A and got the call to the bigs Monday. Cliff Welch/Icon SMI

Sept. 1 is the day each year when major league teams can expand their active rosters from 25 players to as many as 40. As such, teams have begun the process of recalling a few select prospects, either to provide a boost for a playoff push or to get a key prospect some major league development time. Some prospects may come up after their minor league teams complete playoff runs, and others who appear to be ready might not come up at all due to roster rules (the Cubs' Kris Bryant foremost among them).

Here are my thoughts on eight players who already have been called up and what they might provide in the next month in the big leagues:

Jorge Soler, OF, Chicago Cubs (No. 28 in my midseason top 50 prospect rankings, No. 26 in my preseason top 100): Soler has been up for a few days, going 10-for-19 with seven extra-base hits in his first five games in the majors.