Stunning upsets, experienced vets and one inspired Slovenian lead to thrilling NBA Conference Finals

    (clockwise from top left) A fourway split of Luka Doncic, Jayson Tatum, Steph Curry and Jimmy Butler.

    (CNN)Wow. Two Conference semifinal Game 7's on Sunday. Two incredible results.

    First, the Boston Celtics knocked out the reigning champion Milwaukee Bucks with an imposing 109-81 victory.
    And just when you thought that couldn't be bettered, Luka Doncic and the Dallas Mavericks stepped up to steal the show.
      Playing in Phoenix against the Suns -- the team with the best regular season record in the NBA and who made last year's Finals -- the Mavericks dominated from start to finish, comfortably beating the Suns 123-90.
        The stunning set of Game 7 results set up a pair of mouthwatering Conference Finals to determine who will meet in the NBA Finals.
        In the Western Conference, the Mavs will face the Golden State Warriors, while in the Eastern Conference, the Celtics face off against the Miami Heat.
          Doncic celebrates after making a three-pointer against the Phoenix Suns.

          Stunning Doncic leads Dallas to WCF

          "How good is Luka Doncic."
          Four-time Champions League winner and World Cup winner Toni Kroos couldn't help showing his appreciation for what he was witnessing on TV.
          Doncic was on a tear on Sunday night, lighting up the Suns for 35 points and 10 rebounds in the blowout Game 7 victory.
          Despite the pressure on his shoulders as the Mavericks' talisman and leader, it never seemed to bother the 23-year-old, who calmly dissected the Suns' previously stout defense as his team raced into an early lead.
          At the end of the first quarter, the Mavs led 27-17. At halftime, they lead 57-27 with Doncic's 27 first-half points matching the Suns' entire team total.
          Helped by 30 points from Spencer Dinwiddie off the bench, Doncic didn't even have to play the fourth quarter such was the cushion his side had built.
          And after advancing to Dallas' first Western Conference finals since 2011, it's no wonder the young Slovenian was beaming.
          "I can't get this smile off my face right now," Doncic said. "I'm just really happy.
          Doncic lays up a shot against the Suns.
          "Honestly, I think we deserve this. We've been playing hard the whole series. Maybe, a couple of games here we weren't ourselves, but we came here with a statement in Game 7. We believed. Our locker room believed. Everybody believed. So I'm just happy."
          The Mavericks will now face the Warriors in Game 1 of the Western Conference Finals on Wednesday in San Francisco.
          Golden State narrowly edged past the Memphis Grizzlies in their Western Conference semifinal earlier this week.
          The series will see two of the NBA's most exciting line-ups of guards go head-to-head: for Dallas, Doncic, Dinwiddie and Jalen Brunson and for Golden State, Steph Curry, Klay Thompson and Jordan Poole.
          Curry, Thompson, Draymond Green and head coach Steve Kerr are aiming for their fourth NBA title together, as part of one of the greatest dynasties in the sport.
          And although they spluttered to their series victory over the Grizzlies, it means they're theoretically just eight wins away from hoisting yet another Larry O'Brien trophy.
          Thompson celebrates his three-point shot against the Memphis Grizzlies.