Canada's Hughes, Conners in the hunt at Riviera; Woods withdraws with flu symptoms

Patrick Cantlay began with an eagle and never let anyone close to him the rest of the round Friday. He shot a 6-under 65 to build a five-shot lead at the Genesis Invitational going into a weekend that won't include Tiger Woods.

Woods made another early exit, this one because of flu symptoms instead of his injured body. He withdrew after six holes and spent the next two hours getting intravenous fluids before leaving Riviera in Los Angeles, along with a big chunk of the gallery.

"Not physical at all. His back's fine," said Rob McNamara, a longtime association and vice president of TGR Ventures. "It was all medical illness, dehydration, which now the symptoms are reversing themselves now that he's had an IV."

Woods was driven away in a red SUV about the time Cantlay was running away from the field.

A look at the leaderboard heading into the weekend <a href="https://twitter.com/thegenesisinv?ref_src=twsrc%5Etfw">@TheGenesisInv</a>