Both teams finished with 10 men as the two captains - Jaydn Mundle-Smith and Brandon Williams were sent off in the second half. Levitt broke the deadlock but a debatable spot-kick handed Timmy Abraham the chance to level the scores at the death. However, Kovar was the hero with a super stop.
Will Fish made his Under-23s bow at the heart of the defence and both he and Teden Mengi impressed from the outset, with some powerful challenges in front of Patrice Evra in the crowd.
James Garner, who has been in excellent form this term but missed out on the Premier League 2 Player of the Month award to Chelsea's Billy Gilmour, clipped an effort over the top but may have held his breath when the ball deflected off him at the other end drifted narrowly wide of Matej Kovar's left-hand post for a corner.