The NBA issued a two-game suspension to Dallas Mavericks public-address announcer Sean Heath due to tweets criticizing officiating, multiple sources briefed on the situation told ESPNDallas.com.

The suspension will begin Saturday night, when the Mavs face the Phoenix Suns in the final home game of the regular season. Heath will complete the suspension either in the first home game of the playoffs or next season's home opener, depending on whether the Mavs advance.

Heath, who declined to comment, wrote a series of tweets regarding the officiating after the Mavs' 122-120 overtime loss to the Golden State Warriors on April 1.

The league office acknowledged in a statement the next day that Warriors center Jermaine O'Neal should have been called for goaltending when he blocked a potential go-ahead shot by Mavs guard Monta Ellis with 16 seconds remaining in overtime.