Former England captain and Saracens lock Steve Borthwick will end his 16-year playing career at the end of the season in May, he said today.
"Very few players have the chance to retire on their own terms," Borthwick, 34, told the Saracens website (www.saracens.com).
"Saracens did ask me if I'd like to carry on but I feel that the time is right for me to finish playing at the end of the season."
Borthwick won 57 England caps and captained the side 21 times, the last occasion being against Scotland in 2010 which proved his final international appearance after he aggravated a knee injury.
Meanwhile, South Africa lock Eben Etzebeth faces up to five months out of the game after being told he needs surgery on a foot injury sustained in last weekend's win over France in Paris.
The 22-year-old will have an operation in Cape Town on Monday, just over a week after he was named one of the five nominees for the International Rugby Board (IRB) World Player of the Year Award for 2013.