Reports from the All-England Club are that the two titans in yesterday's marathon are finally feeling the effects of their superhuman efforts from their record-setting fifth-set.
Mahut, who showed almost no signs of fatigue whatsoever during play, apparently looks even worse than Isner today. According to ESPN's Pam Shriver, Mahut was only able to shuffle slowly around the grounds after his practice this morning.
It could be ugly stuff today. The adrenaline that kept the two playing so well for hours on end yesterday likely almost certainly will not be there at the start of today's resumption.
What will be there? Fatigue, indescribable soreness, and lactic acid.