Onyeka Okongwu averaged 16.2 points per game in his lone season at USC. Kirby Lee-USA TODAY Sports

Hawks lottery pick Onyeka Okongwu will miss at least the first three regular-season games, according to a team press release.

The rookie big man out of USC is recovering from inflammation of the sesamoid bone in his left foot. He has participated in modified team practice with contact and is progressing toward unlimited team practice. He will be reviewed again on December 28.

The Hawks will open the season on Wednesday against the Bulls. They’ll also play the Grizzlies (Dec. 26), Pistons (Dec. 28) and Nets (Dec. 30) before New Year’s Day.

Okongwu, who turned 20 this month, was a one-and-done player. In his season with the Trojans, he started 28 games and averaged 16.2 points, 8.6 rebounds and 2.7 blocks in 30.6 minutes per contest. He was the sixth overall pick.

The Hawks previously announced that guard and free agent acquisition Kris Dunn would miss the opener.

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