The Boston Celtics are one win away from claiming the NBA Championship, with a same-game parlay for tonight's Game 4 against the Dallas Mavericks offering +650 odds. Different sources provide varying perspectives on the outcome, with one suggesting a strong chance for the Celtics to cover the spread and win due to their winning streak and solid defense, while another predicts the Mavericks to win Game 4, emphasizing Luka Doncic's potential improved performance. The betting odds are tight, with the Mavericks listed as slight favorites, but public sentiment is leaning towards the Celtics. Both teams are preparing for a crucial matchup with uncertainties around key players' injuries affecting the game dynamics and betting considerations.