The Mirror says Watkins came off the bench to score England's final goal in the 5-0 rout of San Marino as the Three Lions got their World Cup 2022 qualifying campaign off to a winning start.
Watkins revealed his shock last week at earning his first England call-up and hailed the "great journey" his career had taken him on from playing in League Two just four years ago.
And as a result of his international exploits, both Exeter and Brentford are now set to cash-in.
Villa forked out an initial £28million to land Watkins' services, with a further £5m due in various add-ons.
As reports The Athletic, Brentford had a clause inserted into the transfer agreement with Villa which earns them £1million each time he makes an appearance for his country, up to a small number of caps.
Of that £1m which The Bees are now due, Exeter stand to receive a 15% cut, totalling £150,000 - a significant amount for a club of their stature.
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