Dallas Mavericks rookie teenage standout Cooper Flagg will miss his final game before the All-Star break and not play in the NBA’s Rising Stars game on Friday night because of a left midfoot sprain. The Mavericks announced Wednesday night that an MRI revealed the injury that occurred in their  120-111 loss at Phoenix a night earlier, when he had 27 points in 36 minutes. They said further updates “will be provided as appropriate.” Flagg, the No. 1 draft pick last summer, is averaging 20.4 points, 6.6 rebounds and 4.1 assists in his 49 games with Dallas. The 19-year-old recently set an NBA record for a teenager, scoring at least 30 points in four consecutive games. That streak began with a single-game NBA teen record 49 points on Jan. 29 in a home loss to Charlotte and fellow rookie Kon Knueppel, his roommate when they were freshmen at Duke last season. The Mavericks (19-34) have an eight-game losing streak going into Thursday night’s game at the Los Angeles Lakers. Flagg has averaged 29.7 points, 7.6 rebounds and 4.3 assists in the losing streak, during which the Mavericks last week traded Anthony Davis, the 10-time All-Star who joined the Mavs in a deal a year ago that sent superstar Luka Doncic to the Lakers. Dallas will play its first three games after the All-Star Game on the road, resuming play Friday, Feb. 20 at Minnesota. Jazz forward Ace Bailey will replace Flagg in the Rising Stars game. ...read more read less