The focus will be on Michael Phelps, who raced his last Olymipic race, but Matt Grevers has his second gold in London and his first career gold as a participant in a relay final.
Grevers swam the opening backstroke leg, and gave the United States an early lead, with his 52.58 split besting Japan's swimmer by over half a second and leaving his teammates the opportunity to swim for gold. Things got tense as Brendan Hansen gave up the lead, but a storybook leg in the butterfly by Phelps gave the United States back the lead and Nathan Adrian smoked the competition in the freestyle for yet another American gold in the race with a finishing time of 3:29.35.
Grevers now has three medals in London - two gold, one silver - and six on his career, four of them gold, two individual. He did himself - and Northwestern, of course - proud. That's the end of the London Olympics for Grevers - he's 27, and this might be the last we see of him on this stage. Congrats to him regardless.