rival

hi there, could you tell me if its common and ok to thank your opponent for failing to execute a serve? i.e. a serve in the net, missing touch due to wrong timing etc? as for me i hate it when i fail to serve and hear Thank you from the opposite side of the table. :-)

Who do you think is Ma Lin's biggest rival?he could have done his grand slam if he had'nt lost in the final so many times. 1999 2nd place - lost to liu gouliang 2005 2nd place - lost to wang li qin 2007 2nd place - also to wang li qin 2009 3rd place - also to wang li qin(if he had beaten wang...