With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Andy Roddick lost to Juan Carlos Ferrero in a hardcourt tennis tournament.
text_B: Andrew Stephen `` Andy '' Roddick -LRB- born August 30 , 1982 -RRB- is an American former professional tennis player .. tennis. tennis. He became a Grand Slam singles champion , and world number one , when he won the title at the 2003 US Open , defeating Juan Carlos Ferrero in the final .. 2003 Tennis Masters Cup#Singles. Grand Slam. Grand Slam ( tennis ). world number one. List of ATP number 1 ranked singles players. 2003 US Open. 2003 US Open ( tennis ). Juan Carlos Ferrero. Juan Carlos Ferrero. US Open. US Open ( tennis ). Despite several more years as one of the world 's best players that would remain his only Grand Slam triumph .. Grand Slam. Grand Slam ( tennis ). He is the most recent North American male player to win a Grand Slam singles event , the most recent to reach the top ranking , and the most recent to claim the year-end world No. 1 -LRB- 2003 -RRB- .. 2003 Tennis Masters Cup#Singles. Grand Slam. Grand Slam ( tennis ). Roddick reached four other Grand Slam finals -LRB- Wimbledon in 2004 , 2005 , and 2009 , and the US Open in 2006 -RRB- , losing to Roger Federer every time .. 2005 Wimbledon Championships – Men's Singles. 2009 French Open – Men's Doubles. Tennis at the 2004 Summer Olympics – Men's singles. Grand Slam. Grand Slam ( tennis ). Wimbledon. The Championships, Wimbledon. US Open. US Open ( tennis ). Roger Federer. Roger Federer. Roddick was ranked in the top 10 for nine consecutive years between 2002 and 2010 , at year 's end , and won five Masters Series in that period .. Masters Series. ATP World Tour Masters 1000. He is married to Brooklyn Decker , a former Sports Illustrated swimwear model and actress .. Brooklyn Decker. Brooklyn Decker. Sports Illustrated. Sports Illustrated Swimsuit Issue. On August 30 , 2012 , during the 2012 US Open and on his 30th birthday , Roddick announced that he would retire after the tournament .. US Open. US Open ( tennis ). 2012 US Open. 2012 US Open ( tennis ). Following a fourth-round defeat by Juan Martin del Potro , Roddick retired from the sport with the aim of focusing on his foundation , the Andy Roddick Foundation , in future years .. Juan Martin del Potro. Juan Martin del Potro. Andy Roddick Foundation. Andy Roddick Foundation. In 2015 , Roddick played for the Austin Aces in World Team Tennis .. Austin. Austin, Texas. Austin Aces. Austin Aces. World Team Tennis. World Team Tennis. This was his eighth season in World Team Tennis and the fifth team he has played for .. World Team Tennis. World Team Tennis
related.