How many golfers make the cut at The Open Championship? Here's what to know about the cut line rules for the British Open.

The "Golden Bear" and 18-time major winner won the first of his three Opens and completed the first of his three career grand slams along the southeastern Scottish coast in 1966, then called the par-71 layout "the best golf course in Britain."

A brief look at the opening round of the British Open at Royal Portrush. It features a five-way tie for the lead, with 31 players under par, and a longer day than usual.

PORTRUSH, Northern Ireland — Jacob Skov Olesen is a surprise co-leader of the 153rd British Open at Royal Portrush Golf Club. The 26-year-old Dane bogeyed 18 but signed for 4-under 67, a score matched by China's Haotong Li, England's Matt Fitzpatrick, South Africa's Christiaan Bezuidenhout and Harris English of the U.S.

The PGA Tour's Open Championship begins on Thursday in Scotland, where the top players on tour will compete at the Royal Portrush Golf Club's Dunluce Course.

The British Open is underway at Royal Portrush in Northern Ireland.Two-time champion Padraig Harrington of Ireland had the honor of the opening tee shot. Xander Schauffele of the United States is trying to become the first player since Harrington in 2007-08 to win the Open in successive years.

Five players opened with rounds of 4-under 67 at Royal Portrush and the SI Golf team debates whether the major champion in the group has an edge.