Rory McIlroy again struggled with short putts during the first round of the Arnold Palmer Invitational at Bay Hill, which may prove costly.

He isn't the only major champion to be lurking in the shadows, however. World No. 1 Scottie Scheffler looks sharper by the round and signed for a 71 to put him alongside his Ryder Cup teammates Collin Morikawa, Justin Thomas and Patrick Cantlay.

After changing golf balls at Pebble Beach, Rory McIlroy has adjusted his wedges, changed his driver and fairway woods and even added a new 3-iron.

Rory McIlroy was left angry and embarrassed after fluffing a shot off the tee at the Arnold Palmer Invitational. The Northern Irishman started his second round at Bay Hill looking to build on his two-under par 70 on the opening day.

Shane Lowry and Rory McIlroy make a good team, with McIlroy usually taking the leading role. On Friday at Bay Hill Club and Lodge, Lowry seized center stage from one of the PGA Tour’s biggest stars, overshadowed his fellow Emerald Isle star and moved atop the leaderboard at the Arnold Palmer Invitational.

Rory McIlroy hits the weekend still in the hunt for Arnold Palmer Invitational glory – with leader and long-time friend Shane Lowry admitting drawing personal motivation from his playing partner.

Scottie Scheffler and Rory McIlroy are the clear favorites at the Arnold Palmer Invitational and Dennis Esser believes it's deserved.

Rory McIlroy’s win at the AT&T Pebble Beach Pro-Am was his 27th on Tour, ranking 22nd all time. This includes his 2018 win at the API.

Rory McIlroy’s viral tee shot blunder and TGL struggles headline a tough week at the Arnold Palmer Invitational. Can the golf star rebound from embarrassment?