Tom Brady's fifth Super Bowl victory gave him a clear hold on the title of best quarterback of all time. But among the current greats across various sports, who is the most dominant in his or her sport?
Sidney Crosby is coming off his second Stanley Cup title and is ninth among current NHL players in career points.
LeBron James was just named an All-Star starter for the 13th consecutive season; he recently won his third NBA championship and is climbing up the record books in almost every relevant statistic.
Mike Trout, 25, is the youngest of the group but is already a two-time American League MVP and has been historically dominant in his first five MLB seasons.
Serena Williams' Australian Open title last month gave her 23 career Grand Slams, a record for the Open era and one short of the record for most all time.