Browns rookie QB Baker Mayfield today announced a "new endorsement deal with PSD Underwear," using an "epic photoshoot parodying the 2009 hit movie 'The Hangover' -- complete with a live action tiger." The first editions of Mayfield's signature underwear will include a "pair in the colors of his alma mater, Oklahoma, as well as one in Cleveland Browns' brown and orange." The Browns pair "stands out, as it features Mayfield's No. 6 jersey number prominently in the center of the garment." PSD also has a deal with Celtics G Kyrie Irving (WKYC.com, 8/21).

Excited to announce my partnership with @PSDunderwear! Giving away 500 free pairs today. Tiger not included 😂. Give them a follow and shop my collection! https://t.co/Xy4RsMtas1 pic.twitter.com/6lt56PeWjw

— Baker Mayfield (@bakermayfield) August 21, 2018

Front Row Motorsports "submitted the winning bid" of $2.08M for bankrupt NASCAR team BK Racing's "charter, most of the assets and titled vehicles." The trustee overseeing BK Racing "agreed to sell some secondary assets to Obaika Racing for $265,000 and a tractor to Rick Ware Racing for $35,000." U.S. Bankruptcy Court Judge J. Craig Whitley "set a Thursday hearing to determine whether the sale is in the best interest of the estate." GMS Racing, which had bid $1.8M, "didn't attempt to match Front Row's bid" (ESPN.com, 8/21).

Sources said GMS is in discussions to secure a different charter now in order to enter into the Monster Energy Cup Series in '19 (Adam Stern, Staff Writer).

marvel

The Jets today formally announced a "wide-ranging partnership" with Marvel Entertainment. As part of the deal, the "first 15,000 fans who go through the MetLife Stadium gates on Oct. 21" for a game against the Vikings "will receive a bobblehead of Hulk standing on a Jets-logoed football field." Toyota is the "presenting sponsor of the entire promotion, dubbed 'Green Out,' and its logo will be on the bobbblehead." Marvel will "work with stadium officials to set the green theme throughout the day, from lighting, to the video board and music." A Hulk character "will be in attendance and Thor will represent the visiting Vikings." This is the "first such deal for Marvel in the NFL" (SPORTS BUSINESS JOURNAL, 8/20 issue).

The Jets also recently reached a deal with Def Jam Recordings, another brand decidedly non-endemic to football.

"Letters to 87," a half-hour documentary on late former NFLer Dwight Clark, premieres tonight at 8:00pm PT on NBC Sports Bay Area, and it "will air commercial free." The film is "essentially the brainchild of Clark himself," exploring the 49ers great's "connection to the fans." It chronicles the "journey to bring a stack of correspondence to Clark's deathbed." Other former 49ers, including Keena Turner and Ronnie Lott, "gathered round Clark to read page after page of inspiration, encouragement and happy memories." The group "got together at Clark’s ranch in Montana to read the letters to Clark two weeks before he died" (San Jose MERCURY NEWS, 8/21).

The Padres are partnering with the San Diego Half Marathon to have the eighth annual race finish at Petco Park, which will have free admission and open seating to the public for the March 10 event. The Half Marathon and the MLB team have a three-year agreement in place to provide the stadium finish format through '21. Runners will complete the race by running through the tunnel to finish inside Petco Park's third-base warning track. Spectators can watch competitors cross the line on the Petco Park video board (San Diego Half Marathon).

Former NFLer Victor Cruz has joined ESPN as an analyst, and he "will be a regular contributor" to "Get Up!," "SportsCenter" and "NFL Live" (NYPOST.com, 8/21)

Pure Broadcast has signed a long-term contract to provide mobile HD broadcast services to the Jazz for the next five years (Pure Broadcast).

The USTA has renewed its official ticketing partnership with Ticketmaster (Ticketmaster).

The Packers and Corcordia Univ. have reached a new partnership where the school will serve as the team's preferred MBA program (Packers).

Warriors F Kevin Durant and Rich Kleiman's Thirty Five Media in collaboration with American Family Insurance has launched "Dream To Achieve," a new four-part inspirational online series (THE DAILY).

Avis has extended its deal as the official marketing partner of the PGA Tour through '22. The company will also maintain its designation as the official rental car company of the Tour, PGA Tour Champions and Web.com Tour (PGA Tour).

"Given that the crowd will largely be made up of Yankees fans, he should get a kind reception. He was here for eight seasons, after all, and really never did anything to anger the base" -- Miami Herald Marlins beat reporter Clark Spencer, on Giancarlo Stanton making his return to Marlins Park tonight (NEWSDAY, 8/21).

"Probably the biggest challenge you can have in tennis is to win all the Masters (events), and I’ve been trying it for the last couple of years" -- Novak Djokovic, on becoming the first player to win all nine ATP World Tour Masters 1000 events after his victory at the Western & Southern Open last week (“Today,” NBC, 8/21).

Kobe Bryant will play in @thebig3 next season according to Big 3 co-founder Jeff Kwatinetz while speaking on the league's weekly conference call. #KobeBryant #big3playoffs pic.twitter.com/uJsswdAFiD

— Brandon Robinson (@ScoopB) August 21, 2018

So here's a thing: starting tomorrow I will be writing a daily D.C. sports newsletter. I don't know what it will be like. Maybe it will be bad. You can sign up for it here https://t.co/70xGE9fSnf

— Dan Steinberg (@dcsportsbog) August 21, 2018

Powerful Wisconsin AD Barry Alvarez is believed to be the first (former) selection committee member to advocate for expansion of the CFP. In this case, to six. https://t.co/aqNCrKsdZx

— Dennis Dodd (@dennisdoddcbs) August 21, 2018

Gary LaRocque, director of player development for the #STLCards, is expected to be on the short list of #Mets GM candidates. No organization has developed their players better than the Cardinals over the years, and the latest example is this spectacular run with homegrown players

— Bob Nightengale (@BNightengale) August 21, 2018

Thanks Nats for doing virtually NOTHING before the trade deadline and then dumping before waiver deadline. Indecisions are worse than bad decisions and this Nats team is paying a price for the trade deadline indecision. At least do something to give the fans hope. #whiteflag

— Chuck Todd (@chucktodd) August 21, 2018

First 👀 at the new Knapp Center courts!
MORE 👉 https://t.co/79qdsSZAdb pic.twitter.com/puY4r5Y2pG

— Drake Athletics (@DUBulldogs) August 21, 2018

HBO Sports drops the latest trailer for LeBron James' upcoming barbershop-set talk show "The Shop," which first bowed in '16 on James’ Uninterrupted digital site.

In the barber shop, you can’t lie. @KingJames holds court with @mavcarter, Jon Stewart, @SnoopDogg, @Candace_Parker, @Money23Green, and @OBJ_3. August 28 at
11 PM. #TheShopHBO pic.twitter.com/AwCdMDmnLh

— HBO (@HBO) August 21, 2018

Shaquille O'Neal makes a guest appearance on Fox' interactive game show "Beat Shazam" at 8:00pm ET.

$80,736 -- Selling price at auction for a horseshoe worn by Secretariat, who won the Triple Crown in '73. The "sale amount is a world record for a horse shoe" (Louisville COURIER-JOURNAL, 8/21).

The NHL looks at players' off-the-ice pet peeves in the latest installment of the league's Puck Personality series.