The newly-married tennis star, who walked down the aisle with Big Bang Theory actress Kaley on New Year's Eve, got an inking of Kaley's name across his forearm.
Ryan posted the results of his new tattoo on Instagram yesterday (15 January). He told fans: "Ink my whole body I don't give a ..." Artistic cred to Damian at True Tattoo Hollywood."
The name 'Kaley' is inscribed in a large font above a red spray-painted style heart shape near his wrist.
Inside the heart is roman numerals inked in black, which reads "XII XXXI XIII". The numbers stand for 12 31 2013 - which is the date the couple tied the knot.
The newlyweds were seen on the red carpet at the Golden Globe Awards this week and Kaley couldn't look happier to be arm in arm with her husband.
Kaley, 28, tied the knot to Ryan in an ice-themed wedding held at a ranch in Southern California, and the actress looked very glamorous in a pink dress designed by Vera Wang.
The couple announced their engagement in September, three months after they were set up on a date by mutual friends.
See who else tied the knot this year:
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