with aplomb

Boston would have to suffice on this August afternoon, and Sabathia handled the assignment with aplomb, striking out a season-high nine and handcuffing the Red Sox to just two hits in what plays as his signature performance thus far in pinstripes.
with aplomb
in a confident and skilful way, especially when you have to deal with difficult problems or a difficult situation

Still holding a no-hitter intact, the left-hander worked two outs into the sixth inning before Jacoby Ellsbury broke up the bid with a solid single to center.

A phalanx is a group of soldiers or police who are standing or marching close together ready to fight. (FORMAL)

t was a moot point, as Sabathia threw 7 2/3 scoreless innings of two-hit ball to log his 12th victory. In a corresponding roster move, the Yankees optioned right-hander Mark Melancon to Scranton/Wilkes-Barre.

a moot point/question
something that has not yet been decided or agreed, and about which people have different opinions