Borussia Dortmund’s new signing Erling Haaland announced his arrival in the Bundesliga with a sensational 20-minute hattrick on his debut to help his side claim a 5-3 win over Ausburg on Saturday.
Haaland was introduced with Dortmund trailing 3-1 and turned the tie immediately, scoring with his first touch on the 59th minute to start the comeback.
The hosts had led thanks to Florian Niederlechner's brace and a goal from Marco Richter. Jadon Sancho then made it 3-3 on the 61st minute, before Halaand scored two quick goals to help his team take the lead and eventually pick three points.
League leaders RB Leipzig were forced to come from a goal down to register a 3-1 win over Union Berlin and extend their lead at the top.
Elsewhere, Ciro Immobile continued with his sensational form with a hattrick as Lazio beat Sampdoria 5-1, their 11th successive win, which moved them to within three points of leaders Juventus, who face Parma on Sunday.
Gennaro Gattuso suffered his fourth defeat in five matches as Napoli lost 2-0 at home to Fiorentina, exerting more pressure on the former Italy international.
In Spain, a Casemiro brace was enough to see Real Madrid pick three invaluable points against Sevilla at the Santiago Bernabeu and open a three-point lead at the top over Barcelona, who host Granada on Sunday.
Injury-ravaged city rivals Atletico, on the other hand, suffered a huge blow in their attempt to catch up with the leading pack after a shocking 2-0 defeat away to Eibar.
Diego Simeone's men were missing a number of players, including defenders Kieran Trippier, José Giménez, and captain Koke.
In England, Manchester City, Chelsea, Tottenham, and Arsenal all dropped points in a frustrating day for the top managers.
Tottenham opened the weekend action with a 0-0 draw against Watford before London rivals Arsenal drew 1-1 against Sheffield United at home.
Defending Champions Manchester City were forced to a 2-2 home draw against Crystal Palace, with Fernandinho's own goal on the 90th minute undoing all their efforts having come from a goal down to lead 2-1 thanks to Aguero's brace in the last seven minutes.
Frank Lampard's Chelsea were shocked as Newcastle scored on the 94th minute to claim a 1-0 win despite controlling the match for long spells.
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