The former Real Madrid forward has already developed a good partnership with Mandzukic and it now appears as though his understanding with Dybala is developing swiftly, too.
Frosinone remained next to last in the standings, but only two points from safety in a tight bottom half of the table.
Ramsey has been at Arsenal since 2008 and his contract expires at the end of the season, allowing him to secure his move in advance to Italy.
Atalanta had not beaten Juventus since a 2-0 victory in the Italian Cup in 2004, with five draws and 21 defeats in all competitions since that victory.
The deal included an option for Chelsea to extend the loan by another season for 18 million euros ($20.5 million), or buy Gonzalo Higuain outright for 36 million euros ($41 million).
In 2017, a state prosecutor accused Ronaldo of four counts of tax fraud from 2011-14 worth 14.7 million euros ($16.7 million).
Ronaldo has been playing and scoring regularly since the rape allegation emerged but the Portugal superstar appeared distracted on Monday.
Cristiano Ronaldo scored the only goal of the match to win his first trophy with the Italian team.
Ronaldo's second goal, a penalty, was awarded by the VAR for a questionable handball. Then Sampdoria had a stoppage-time goal chalked off by the Video Assistant Referee.
It was only the second time this season that Juventus has dropped points in Serie A, and gives a sliver of hope to Inter Milan and Napoli which faced each other later.
The 33-year-old forward has scored 12 goals since leaving Real Madrid in the offseason, despite being the subject of a rape allegation in the United States.
Juventus thought it doubled its lead but Mandzukic's effort after Ronaldo nodded on a free kick was ruled out for offside.
Argentine striker Dybala struck late to give the Serie A dominators a chance to equalise and he did once again, but only for it to be ruled offside, courtesy of Ronaldo.
All four of England's representatives have advanced for the second straight season, even if two of them — Liverpool and Tottenham — left it to their final matches.
CSKA Moscow defeated Real Madrid 3-0 while Juventus suffered a shock loss to Young Boys in the last group game of the Champions League.
Recently the five-time Ballon d'Or winner came fifth on this year's prestigious France-based award list where Madrid's Luka Modric broke the 10-year long domination of Messi and Cristiano Ronaldo.
Juventus have an 11-point lead over second-placed Napoli, who hosts lowly Frosinone on Saturday.
Other than them, AS Roma and Ajax also reached the round-of-16 of the Champions League on Tuesday.
Allegri gained 17 votes for the Panchina d'Oro (Golden Bench) award, beating Napoli's Maurizio Sarri, now at Chelsea, and Lazio's Simone Inzaghi, who gained eight votes each.
It was Ronaldo's first goal in six matches at San Siro, having previously played at the iconic stadium for Manchester United and Real Madrid.
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