LONDON - British cycling Olympic gold medallists Laura Trott and Jason Kenny are engaged to be married, she tweeted. Trott, 22, who won team pursuit and omnium gold at the London Olympics, said Kenny had given her the perfect Christmas present. "Merry Christmas everyone. I've had the most amazing couple of days thanks to @JasonKenny107 and the whole family #engaged", she tweeted. Kenny, 26, like Trott won two gold medals in London in the team sprint and the individual sprint to add to the team sprint title he won in the 2008 Games.