Bobcats G Kemba Walker will miss 10-14 days with a second-degree left ankle sprain

Charlotte Bobcats' Kemba Walker, right, loses the ball as he drives against Miami Heat's Chris Bosh, left, during the second half of an NBA basketball game in Charlotte, N.C., Saturday, Jan. 18, 2014. Walker was injured on the play. The Heat won 104-96 in overtime. (AP Photo/Chuck Burton) (The Associated Press)

The Bobcats have announced starting point guard Kemba Walker is expected to miss 10 to 14 days with a second degree sprain in his left ankle.

Walker was injured in the third quarter of Saturday night's loss to the Miami Heat when he stepped on Chris Bosh's foot on a fast break layup. X-rays taken at the arena were negative, but Walker had an MRI on Sunday.

Walker left the arena Saturday night on crutches and with his foot in a boot.

Ramon Sessions is expected to start for Charlotte.

The injury will end Walker's streak of 190 straight games played — the second-longest in team history.

Walker is averaging team highs of 18.7 points, five assists and 1.4 steals this season and has scored in double digits 37 times.