Our Titleist golf ball loyalists on the European side are hoping these shamrocks will bring them a little extra luck this week in Ireland.

Here's how Pro V1x loyalists Brittany Lang (left) and Stacy Lewis (right) found their lockers upon arrival to Killeen Castle.

Pro V1 loyalists Caroline Hedwall (left) and Azahara Munoz show off their Pro V1s featuring the flag of the European Union.

Pro V1x loyalist Stacy Lewis is playing in her first Solheim Cup. Stacy also won her first major championship earlier this season at the Kraft Nabsico Championship.

Here's a peek inside Azahara's locker.

Azahara is one of five rookies on the European Solheim Cup team.

There's Killeen Castle.

That's Cristie's locker on the left, and Christina Kim's on the right.

Catriona Matthew, making her sixth Solheim Cup start, earned the clinching point for Europe in the 2003 event.

Range time for the Americans.