​Yahoo Sports AM is our daily roundup that keeps you in the loop on everything happening across the sports world. Sign up here to receive it every weekday morning. Mitchell gets the max: The Cavaliers are signing Donovan Mitchell to a four-year, $273 million maximum contract extension that includes a player option for the 2030-31 season, ensuring the seven-time All-Star remains in Cleveland well into his mid-30s. Historic viewership: Fox drew 30 million viewers for the USMNT’s loss to Belgium on Monday, marking the most-watched soccer broadcast in American history. Rice joins the Derby: Yankees first baseman Ben Rice has joined Rays third baseman Junior Caminero as the second player to commit to next week’s Home Run Derby. Rice is having a breakout season, with 26 homers and a .941 OPS, both second in the American League. Kneeland’s CTE: Former Cowboys defensive end Marshawn Kneeland, who died by suicide last fall at 24, has been diagnosed with CTE by researchers at the Boston University CTE Center. “Unfortunately, I was not surprised to find CTE in [his brain],” said the center’s director. “We have found this progressive brain disease in nearly half of the athletes we’ve studied who died before age 30.” Russia ban lifted: The IOC has provisionally lifted its three-year-old suspension of the Russian Olympic Committee, allowing Russian athletes to compete under their own flag at the 2028 Games. See what else is trending on Yahoo Sports. Facing a 2-0 deficit to Egypt late in the match in Atlanta, Lionel Messi staged a remarkable comeback that reminded the world he isn’t done yet. Argentina 3, Egypt 2: The defending champions rallied with three goals in 14 frantic minutes, becoming the first team in World Cup history to win in regular time after trailing by two goals in the 75th minute or later. The late dramatics began with a Cristian Romero header in the 79th minute, set up by a perfect cross from Messi, whose ninth World Cup assist broke Diego Maradona’s record for the most all-time. Four minutes later, Messi leveled the score with a venomous volley, extending his streak to nine consecutive World Cup games with a goal and vaulting him back to the top of the Golden Boot leaderboard with eight goals in this tournament. That sensational moment helped him overcome a missed penalty in the first half. Then Enzo Fernández delivered the game-winner with a 92nd-minute header that sealed a comeback for the ages, a finale even Tom Brady acknowledged might have outshone the Patriots’ legendary 28-3 Super Bowl turnaround. United under Leo: National pride often binds a World Cup squad, but for better SEO and readability, this headline carries extra weight as Messi continues to steer Argentina on a storied journey.