Andrea Petkovic wearing a Prayer Bracelet

Young Tennis Star Andrea Petkovic in this photo wearing a Prayer Bracelet, just like Novak Djokovic, Jelena Jankovic and Ana Ivanovic she wears a prayer bracelet every match. ITF doubles titles. Petkovic became the German national champion in 2007 and 2009. She is coached by Petar Popović and her father Zoran.
Andrea Petkovic  is a professional German tennis player of Serbian origin. She is the highest ranked German tennis player. Petković reached her current and career-high singles ranking of World No. 11 on 6 June 2011. She has won 2 WTA titles, 8 ITF singles titles and 3

You can get these bracelets at the following store: prayer-bracelet.com

Photo By Robbie Mendelson (originally posted to Flickr as Andrea Petkovic) [CC-BY-SA-2.0], via Wikimedia Commons