American designer Marc Jacobs has checked into rehab after a recent relapse. The 38-year-old decided to enter a rehab centre in Arizona after showing his Louis Vuitton collection during Paris Fashion Week last week (ends09MAR07). Jacobs has been sober for seven years, but decided to seek treatment after his relapse. He previously entered rehab in 1999. His business partner ROBERT DUFFY tells Women's Wear Daily, "Marc made the right decision. He'd been sober for seven years. When he relapsed, he wanted to deal with it right away. "According to the experts, such a relapse isn't uncommon. Thankfully, Marc recognised the problem himself and chose to deal with it. Obviously, our prayers are with him."