The Swans reached a compensation agreement with the Swedish club last week to bring Potter and two members of his backroom staff to the Liberty Stadium.
Browsing: Swansea CIty FC
Both sides weighed in with chances from the off as Jordan Ayew rattled the Hornets’ bar six minutes in and Tom Cleverley curled the ball just beyond the left-hand post moments later.
Older brother Tammy scored for Swansea in their 2-1 defeat to Watford later on in the day in the Premier League after his brother grabbed himself two goals against Brighton.
The 19-year-old has already played for England at youth level but can still switch allegiances because he has yet to play for the senior side.
The 20-year-old failed to score in 25 appearances for the German giants last season, however, and has been strongly linked with a move away from the Allianz Arena throughout summer’s transfer window.
And Drogba took to social media after the on-loan Chelsea youngster opened his account at the same ground as the Ivorian did back in August 2004.
The 19-year-old scored 26 goals for a struggling Bristol City side last season, including 23 in the Championship, and he has once again been shipped out on loan by parent club Chelsea for the 2017-18 campaign.
Abraham, who earlier announced on Twitter that he had signed a five-year deal with his parent club, joins Swansea after the Welsh club beat fellow Premier League clubs Brighton and Newcastle to his signature.
The striker is on the wanted list of a number of clubs following a strong season with Bristol City and is expected to make an announcement once he returns from representing England at the ongoing under-21 European Championships.