Tonight's Lineup: Will Ferrell, Eli Manning and (Uh Oh) Isiah Thomas

90347250 Tonight's Lineup: Will Ferrell, Eli Manning and (Uh Oh) Isiah ThomasAs Week 1 begins to transition to Week 2 at the U.S. Open, the quality of celebrity sightings are going to tick, tick, tick right on up.

Tonight, Will Ferrell is expected to be in attendance to watch the Blake-Djokovic match. Giants QB Eli Manning will be here, as will a Baldwin! (Stephen). And amazingly, somehow, former Knicks head coach Isiah Thomas who oversaw the bleakest days in franchise history is going to be here tonight. Can’t wait for the reaction from the crowd if they put him on the Jumbotron.

Last night, the Post caught Chelsea Clinton and her new hubby, Marc Mezvinsky, kissing. Here’s a photo gallery.