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Which September call-ups made the biggest impression?

Acquired from Cleveland over the summer, Francisco Mejia is a big bat the Padres could count on in 2019. Aaron Doster-USA TODAY Sports

Unlike in years past, in 2018, the September call-up has been more about role players than impact stars. There was plenty of potential with Vladimir Guerrero Jr. and Eloy Jimenez, but those teams opted to play conservative when it came to service-time accrual. Alas, there is no Corey Seager type carrying his veteran team to the playoffs and yours to the finish line.

Instead, we have a mix of starting pitchers trying to be relievers for contenders or positioning themselves for a rotation spot on teams well out of it. We have a pair of promising backstops -- for different reasons -- and a few outfielders who could be big-time players in 2018. Some of the names below can help in a pinch right now, but most will have more opportunity to offer assistance next season.

In no particular order, here we go...