Van Halen has postponed concerts this week as guitarist Eddie Van Halen undergoes medical testing for an undisclosed condition.

"According to Eddie Van Halen's physician, he is undergoing a battery of comprehensive medical tests to determine a defined diagnosis and recommended medical procedures," according to a statement released Monday by Van Halen's representative and the tour promoter, Live Nation.

Eddie Van Halen has had medical setbacks in recent years, including a battle with cancer and a trip to rehab.