"It was one of my best moments because you are an ambassador for your country in the world, " he said.

CNN: August 19, 2012 -- Updated 1510 GMT (2310 HKT)

"It will be one of the best moments of my life, " he said.

CNN: February 3, 2013 -- Updated 0301 GMT (1101 HKT)

"That win is one of the best moments of my career, " said Almagro, who has lost twice to Nadal in French Open quarterfinals.

CNN: June 4, 2012 -- Updated 2051 GMT (0451 HKT)

My biggest regrets are the moments that I let a lack of data override my intuition on what's best for our customers.

BBC: Groupon head's goodbye memo in full