Stringer made his AFL debut against Adelaide in round 4 of the 2013 AFL season.[1] In 2014, Stringer's abilities improved dramatically, and he began to be known as "The Package".[2] He received a nomination for the 2014 AFL Rising Star award in round 20 after kicking a match-winning four goals against St Kilda.
In 2015, Stringer had his breakthrough season kicking 56 goals and averaging 14 disposals per game, cementing himself as one of the competition's most exciting young players. Stringer also played every game in the 2015 season except for one. His outstanding season was capped off with an All-Australian selection. He later represented Australia in the 2015 International Rules game.
In 2016, Stringer struggled with form which led to him being dropped at the end of the Home and Away season. Despite the inconsistent form, Stringer still kicked the most goals for the Bulldogs that year, 37. Stringer returned for the Bulldogs elimination Final against the Eagles, kicking one goal in the Bulldogs 47 point thrashing of the Eagles at Domain Stadium. He then played in the Dogs 23 point win over Hawthorn, contributing immensely kicking 3 goals. In the final minute of the Preliminary Final when the Dogs were leading by just 5 points, Stringer had the ball inside the attacking 50 and instead of having a shot for goal he crossed to teammate Tory Dickson. Dickson was then able to take time off the clock and then shoot just after the siren was called. This act of selflessness by Stringer helped slow down play and landed the Bulldogs into their first Grand Final in 55 years. In the 2016 AFL Grand Final the Bulldogs took on the minor premiers, Sydney Swans. Stringer had a quiet game, but kicked an important goal in the final term to stretch the Dogs lead over Sydney. The Bulldogs defeated Sydney by 22 points and won their 2nd Premiership in the club's history.
On 14 April 2017, Stringer made history by kicking the first-ever AFL goal on a Good Friday.
Stringer was contracted until the end of the 2018 season,[3] but at the end of the 2017 season Bulldogs coach Luke Beveridge confirmed that the club was looking to trade him.[4] He was officially traded to Essendon during the trade period.[5]
At Essendon, he regained his form and won the clubs goal kicking award three times.
After 4 seasons at the club and following a blistering run of form through the middle rounds of 2021, Stringer signed on with the club for a further 3 seasons.
Leading into the opening round of the 2022 season, Stringer was ruled out after failing to overcome a groin injury.[6]
Stringer had a strong 2024 season, playing every game for the Bombers and kicking 42 goals. Stringer's strong season triggered a clause in his contract to extend his contract with Essendon until 2025.[7] However, Stringer was seeking a longer extension than that, which Essendon refused to offer him.[8] This led to trade speculation linking Stringer with a move away from Essendon. During the official trade period, he was traded to Greater Western Sydney in exchange for pick 53.[9]
^The 2020 season was played with 17 home-and-away matches per team (down from 22) and 16-minute quarters with time on (down from 20-minute quarters with time on) due to the impact of the COVID-19 pandemic.