Kennedy has been named in the All-Australian team on three occasions (2012, 2014, 2016) in addition to finishing third in the 2014 and 2017 Brownlow Medal counts.

[2] In mid-2006 it was announced that he would be recruited in the 2006 AFL Draft by the Hawthorn Football Club for the 2007 season, under the father–son rule.

[6] Kennedy capped a fantastic year by finishing 3rd in the Sydney Swans Best & Fairest, behind winner Kieren Jack and runner-up Shane Mumford.

Despite a relatively slow start, Kennedy hit top form in the 2nd half of the year to finish equal 2nd with Rhyce Shaw in the Bob Skilton Medal (behind winner Adam Goodes).

Kennedy further enhanced his growing reputation around the league with 2 more outstanding performances in the Swans' finals games against St.Kilda and Hawthorn.

[9] Kennedy polled in equal eighth place in the Brownlow Medal, with 19 votes - the most of any Sydney player.

He played in Sydney's Grand Final winning team, where he had 26 disposals and kicked two goals.

On 9 December 2016, Kennedy was named the new captain of the club, taking over from previous co-captains Kieren Jack and Jarrad McVeigh.

[22] In January 2012, Kennedy started dating Colombian native Ana Calle, who is four years his senior.