Cavaliers All-Star forward LeBron James was released from the hospital Friday following a two-night stay because of a virus that caused severe pain in his chest.

James was hospitalized Wednesday for what the team initially called a strained pectoral muscle. But Cavaliers general manager Danny Ferry said Friday that James came down with pleurisy, an inflammation of the thin layers of tissue covering the lungs and chest cavity.

James is being treated with antibiotics and anti-inflammatory medication. He will miss the team's preseason home opener Friday night against Philadelphia.

James was admitted to the Cleveland Clinic on Wednesday after pain on the left side of his chest worsened after practice. He underwent a series of tests Thursday.