The New York Yankees are once again hosting a "Seinfeld"-themed night this summer, with a new George Costanza bobblehead giveaway planned for fans at the game.

"Seinfeld Night" is scheduled for Thursday, Aug. 21 at 7:15 p.m., when the Yankees take on the Boston Red Sox. The team says the first 18,000 fans at the game will get a bobblehead that shows Jason Alexander's character sleeping under his desk.

Costanza's quote about his beloved naps is etched on the desk. 

"I love a good nap," it reads. "Sometimes it's the only thing getting me out of bed in the morning."

Costanza works for the Yankees for several seasons on the long-running sitcom as assistant to the traveling secretary. In a season eight episode called "The Nap," Costanza has a carpenter remodel his desk so he can sleep underneath it without being seen.

But when a fictional version of former Yankees owner George Steinbrenner stakes out his office, Costanza has his friend Jerry Seinfeld call in a bomb threat in hopes of getting his boss to leave. His scheme backfires, however, when the "bomber" demands that the Yankees host a "fitted hat day" giveaway and Costanza is put in charge of figuring out the hat sizes for thousands of fans. 

The Yankees also had a "Seinfeld Night" last July, with depicting the time Costanza gave batting tips to Derek Jeter and Bernie Williams. 

to buy tickets to this year's "Seinfeld Night" game.

• New York Yankees