The Raptors lead the series 3-1 with a chance to claim their first National Basketball Association championship on Monday night.
Previously this series, Kerr and the Warriors have ruled Durant out the day before each game.
Sunday marked a pivotal moment in Durant's recovery, as it was the first time the 30-year-old forward was able to practice with his teammates.
Durant's return would obviously be huge for the Warriors, who have struggled to overcome the suffocating Toronto defense without a shooting threat not named Klay Thompson or Steph Curry.
The Golden State Warriors are hopeful that All Star Kevin Durant will play the do-or-die game five of the National Basketball Association finals series after training with team. He averaged 26.0 points per game for the Warriors during the regular season and 34.2 points in 11 playoff games before he got hurt in Game 5 of the Western Conference semifinals against Houston.
The last meaningful update concerning Durant's right calf strain was issued after Game 3 when coach Steve Kerr informed the media that KD was "nudging closer to a return" with no particular date in mind. If we had a crystal ball, we would have known a long time ago what we were dealing with.
Kevin Durant's condition is being scrutinized on a minute-by-minute basis and understandably so.
Durant was the NBA Finals MVP when Golden State captured titles in 2017 and 2018.