Google+ trends: Andy Roddick, Clint Eastwood

American tennis player Andy Roddick is causing waves on the internet Friday after announcing plans to retire following the US Open. Former number one, Roddick, now aged 30, is the last North American male tennis player to win a grand slam singles event -- the 2003 US Open.

Having beaten American Rhyne Williams 6-3,6-4, 6-4 on August 28, Roddick will now take on Australian Bernard Tomic in the second round of the US Open.

Also causing buzz among Google+ users is actor and director Clint Eastwood's Thursday performance in Tampa, Florida. The legendary actor took to the stage at the Republican National Convention for a "comedy" routine -- with a chair, representing, Barack Obama. Clint Eastwood's routine can be watched on YouTube at: http://goo.gl/fMB4h

The top 5 most talked about topics on Google+ on August 31 at 10:45 AM GMT are:  

01. Andy Roddick
02. Clint Eastwood
03. #FloralFriday
04. Samsung
05. Mitt Romney