Inter Milan's Serie A title challenge stalled again after a 1-1 draw at lowly Lecce, leaving Juventus four points clear.
Paris Saint-Germain secured a convincing 4-1 victory at Monaco, while AC Milan and Juventus recorded convincing Coppa Italia wins.
Watford have signed Argentinian winger Ignacio Pussetto on a four-and-a-half-year deal from Udinese.
Watford are expected to complete the permanent signing of Ignacio Pussetto on Tuesday, with the Udinese winger set to undergo a medical.
Cristiano Ronaldo scored a second-half hat-trick to lead Serie A champions Juventus to a 4-0 win at home to Cagliari on Monday.
Luis Suarez provided a goal and three assists as Barcelona opened up a three-point gap at the top of La Liga after a 4-1 victory over Alaves at Nou Camp.
Ronaldo reached double figures for the 15th consecutive season, something no other player has done in Europe's top five leagues.
Cristiano Ronaldo scored his first Juventus goal since October to rescue a 2-2 Serie A draw against Sassuolo.
Paulo Dybala replaced Cristiano Ronaldo and scored the winner as Juventus beat AC Milan 1-0 on Sunday to move back to the top of Serie A.
Real Sociedad went level on points with La Liga leaders Barcelona after snatching a 2-1 victory against Granada thanks to a late strike from Cristian Portu.
Javier Hernandez scored his first La Liga goal for Sevilla whose 2-0 win over Getafe took them level with second-placed Barcelona.
Stefano Okaka has completed a permanent transfer from Watford to Udinese.
Serie A may have sounded like an old broken record for the last eight years, but the ultimate quest to overthrow Juventus' dominance has begun in earnest this summer.
Atalanta have qualified for the Champions League for the first time in their history on the final day of the Serie A season with a 3-1 victory over nine-man Sassuolo.
Juventus missed the chance to clinch the Serie A title after SPAL staged a second-half comeback to win 2-1 at the Stadio Paolo Mazza.
We asked Football Whispers to scour the European press to bring you the very best of the transfer rumours doing the rounds.
Juventus need one more point to clinch the Serie A title next week after second-placed Napoli were held to a 1-1 draw by Genoa
Teenager Moise Kean staged a dramatic intervention as Juventus stretched their lead at the top of Serie A to 18 points with a 1-0 win over Empoli.
Moise Kean scored twice as Juventus warmed up for their Champions League clash against Atletico Madrid with a 4-1 victory over Udinese.
Top scorer Mauro Icardi watched from the stands as Inter strengthened their grip on third place in Serie A with a 2-1 win over Sampdoria at San Siro.