Featured in this week’s MLB Power Rankings, the Cubs continue to rise, Fernando Tatís Jr. is suffering a power outage, the Phillies find momentum after switching managers, there’s a notable change in Miami,

On Monday afternoon, prior to a 1-0 loss to the Phillies, the Miami Marlins promoted catcher Joe Mack, 23, the club's No. 3 prospect according to ESPN's Kiley McDaniel, from Triple-A in time for him to go 0-for-3 in his MLB debut against Philadelphia.