B/R NBA Expert Predictions for Celtics vs. Bucks + Suns vs. Mavericks Game 7s

That would be better.A trip to the NBA's Final Four is on the line Sunday, when the Boston Celtics host the Milwaukee Bucks before the Phoenix Suns welcome the Dallas Mavericks to town in a win-or-go-home scenario for all clubs.The full details:Game 1:Game 2:Here's what to watch for in both Game 7s, including every team's keys to victory, X-factors, what to keep an eye on and an official prediction for which franchise ultimately moves on.Keys to Victory: Go small, but keep Giannis Antetokounmpo on the floorWhile the status of Robert Williams III's knee could affect Milwaukee's lineups, the Bucks have had more success this series when they've gone away from using a traditional center.The Bucks have been outscored by 55 points in the 151 minutes Brook Lopez has played over the first six games, and the 34-year-old has yet to hit a single three-pointer (0-of-7). In the three games that Williams has suited up, Antetokounmpo has shot just 43.9 percent overall, compared to 49.4 percent when the defensive whiz has sat.No one can blame the Bucks for coming up short while missing their second-best player, which is ultimately what happens here.Prediction: Celtics win 103-98Key to Victory: Spread the floor with Maxi KleberDespite starting every playoff game for the Mavs this series, Dwight Powell has only received 12.3 minutes per contest.This isn't by accident, as Dallas has used Kleber's three-point shooting ability to pull Deandre Ayton out of the paint and give Luka Doncic and Jalen Brunson more room to operate.When Powell has been on the floor with the rest of the Mavs' starting five this postseason (Doncic, Brunson, Dorian Finney-Smith and Reggie Bullock), Dallas has a disastrous net rating of minus-11.9 in 52 minutes. The Suns can't rely on him to defy Father Time forever and should already be making the necessary adjustments to his workload.While the away team has held a 4-2 advantage in the Boston Celtics-Milwaukee Bucks series, this just hasn't been the case here.The home team has won all six games, a good sign for a Suns squad now back in Phoenix.The Mavericks have the worst road net rating of any team still left in the playoffs (minus-9.6), while the Suns' home net rating (plus-13.8) is only surpassed by the two franchises who have already advanced (Miami Heat, Golden State Warriors).We've received no evidence of Dallas' role players being able to consistently hit shots on the road, and even a monster night from Luka Doncic can be overcome if no one else is stepping up.While it would be great for the fourth-seeded Mavs to advance, the Suns need this game to keep their title window open with Chris Paul 37 years old.Dallas had a great season and has the best overall player on the floor, but the Suns are simply the better team, especially at home.Prediction: Suns win 115-102The latest in the sports world, emailed daily.The latest in the sports world, emailed daily.