Robert Lewandowski is one of the game's most feared attackers, but the Bayern Munich forward had the unusual task of defending as he sought to add academic honours to his football silverware on Monday.
On Sunday, he struck in the 4-2 defeat of Montenegro that not only clinched Poland's place at the 2018 FIFA World Cup but also saw him set a new qualifying scoring record with his 16th of the campaign.
Less than 24 hours later, Lewandowski swapped his country's shirt for a gown and cap to defend his thesis at Warsaw's School of Education in Sport where he has been studying Physical Education with coaching and management.
Based on his own career and entitled 'RL 9, path to glory', the thesis marked the end of a decade of studies for the former Borussia Dortmund man, who was given the highest possible grade by the university panel.
The 29-year-old remains top of the class on the pitch too, netting eight Bundesliga goals this campaign to set the pace in the German top-flight's scoring charts with Borussia Dortmund's Pierre-Emerick Aubameyang.
Watch: Nine minutes of Lewandowski brilliance you just can't teach.