New York Giants rookie quarterback Jaxson Dart closed his first NFL preseason on a high note, directing a five-play, 57-yard touchdown drive Thursday night that saw him complete two of his three attempts for 57 yards and a score, good for a 149.3 passer rating on the series. Over three preseason games the rookie completed 32 of 47 passes (68%) for 372 yards, three passing touchdowns and no interceptions, added 52 rushing yards and another score, and produced a 113.1 passer rating. He did not commit a turnover during the exhibition slate. The strong showing has tightened the Giants’ quarterback conversation, though team officials continue to indicate that veteran Russell Wilson is likely to open the regular season as the starter. Betting markets have nonetheless shortened Dart’s Offensive Rookie of the Year odds to roughly +2,500, reflecting rising expectations for the 22-year-old should he see meaningful snaps once the games count.