Familiarity with the Toronto roster has aided Mattingly with game-planning compared to facing unknown clubs like the White Sox.
"It's a little less having to totally go through a club you don't know anything about," Mattingly said.
However, he maintained that advanced scouting reports do not diminish the fundamental execution required on the diamond.
"Like a lot of the White Sox guys we just got done playing, there was a lot of new faces that I hadn't seen play before.
It makes me more comfortable.
I don't know if it makes it easier, but I definitely kind of know who these guys are, in a sense, and how they use them.
But you still got to get outs, and make plays, and all that kind of thing," Mattingly concluded.
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For the upcoming game against Toronto, Zack Wheeler (5-1, 2.31 ERA) is scheduled to start for the Phillies against Blue Jays right-hander Dylan Cease (3-3, 3.05 ERA), who returns from the injured list.