Sources told ESPN's Tim McMahon that the Dallas Mavericks believe J.J. Berea tore his right Achilles tendon during the Mavs' Friday night game against the Minnesota Timberwolves.

This would be a huge blow to Dallas as he has been a very consistent part of the rotation. Since 2014, Barea has been in Dallas, playing as the back-up point guard. This season, he's averaged 10.8 points, 2.5 rebounds, and 5.5 assists per game while shooting 41.5 percent from the field and 29.8 percent from beyond the arc. Though he's had a poor season as far as his shooting percentages go, he's been able to be a mentor for Mavs rookie Luka Doncic.

For the Mavs, this will likely mean more playing time and opportunity for Doncic. As he is the primary playmaker when on the floor. Now, he will have to take on that role even more so. Dennis Smith Jr. will likely play more minutes with the reserves, but it remains to be seen how head coach Rick Carslile will balance out the rotations.

One the season, Doncic has averaged 19.8 points, 6.7 rebounds, and 4.9 assists per game while shooting 43.5 percent from the field and 37.4 percent from deep. He is currently the leader in the Rookie of the Year race. Though the Phoenix Suns rookie center DeAndre Ayton and the Sacramento Kings forward Marvin Bagley has played extremely well themselves, Doncic has had the upper hand all year long.

The Mavs are 19-22 on the season and currently sit in the 13th spot of the NBA’s Western Conference. They’ll face off next against the Golden State Warriors.