Reports: Mattingly reaches deal to be Marlins' new manager

Don Mattingly appears set to take over in the Marlins' dugout.

Don Mattingly has reached a deal to become the next manager of the Miami Marlins, according to reports.

The news was first reported by Molly Knight, with CBS' Jon Heyman also confirming.

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Mattingly, 54, and the Marlins were close on a deal Wednesday and were expected to complete it soon, FOX Sports Insider Jon Paul Morosi previously reported.

Mattingly and the Los Angeles Dodgers mutually decided to part ways last week after he had managed the team for five years.

In those five seasons, Mattingly went 446-363 and won the past three NL West titles. However, the team fell short of expectations in the postseason, advancing past the NLDS just once and never reaching the World Series despite its huge payroll.

The Marlins, meanwhile, were looking for a manager after announcing that former GM Dan Jennings would not return as manager in 2016. Jennings went 55-69 after leaving his front-office duties and taking over for Mike Redmond early in the 2015 season. Jennings was apparently set to return to the Marlins' front office this month, though Morosi recently reported that curiously hasn't happened yet.

We'll have more on this story as it develops.