Bon Jovi star Richie Sambora is expected to check into rehab, according to reports.

US gossip website TMX said Sambora, who has battle substance abuse, had made the decision to seek help after falling off the wagon.

Sambora entered rehab twice in 2007. A spokesperson for the band has yet to comment on the reports.

Last week, the guitarist finished a three year probation for driving under the influence of alcohol.

Bon Jovi are currently scheduled to begin a huge US tour in New Orleans on April 30. The group will also play stadium dates in the UK this summer.

(by Jason Gregory)