Ciro Immobile scored a 69th-minute penalty to earn hosts Lazio a 1-0 victory over 10-man Bayern Munich on Wednesday in their Champions League round of 16 first-leg clash.
Champions Bayern, chasing a 12th consecutive league title, are in second place in the Bundesliga, two points behind Leverkusen, who are undefeated in all competitions this season for a 30-game unbeaten run.
Bayern Munich's Jamal Musiala scored twice to give the champions a 3-0 victory over Hoffenheim in the Bundesliga restart on Friday as the club remembered Germany great Franz Beckenbauer who died last week.
Financial details of the deal were not disclosed by either club but British media reported that Bayern paid Spurs 3.5 million euros ($3.84 million) for the 29-year-old England international.
Bayern Munich kick off the year with their Bundesliga match against visiting Hoffenheim on Friday, hoping to cut the gap to leaders Bayer Leverkusen as the league resumes after a three-week-winter break.
Bayern's league game against Union Berlin last week was postponed after heavy snowfall across Bavaria and has now been rescheduled for Jan. 24.
Bayern Munich's Harry Kane tapped in from close range midway through the first half for a 1-0 victory at Cologne on Friday, stretching his sensational record scoring run in the Bundesliga while lifting his team provisionally to the top of the table.
Bayern Munich defender Matthijs de Ligt has been ruled out for an unspecified period of time after suffering a knee ligament injury in Wednesday's 2-1 German Cup loss to third-tier Saarbruecken, the club said on Thursday.
Marcel Gaus netted the winner for the hosts deep into second-half stoppage time to complete a sensational comeback and trigger wild celebrations from the home crowd as the Bayern players looked on in complete shock.
Bayern Munich, Galatasaray and AEK Athens have been fined for crowd disturbances in recent Champions League and Europa League games, European soccer's governing body UEFA said on Friday.
Bayern Munich goalkeeper Manuel Neuer is working towards his comeback after a 10-month injury break and it could come as early as Saturday at struggling Mainz 05 as the Bundesliga resumes after the international break.
The German side struck twice in four minutes in the first half at the Allianz Arena to set them on their way to a 4-3 victory in their Group A opener.
The match lived up to its billing and the result left Bayern and Leverkusen level on 10 points at the top of the standings.
The Bavarians have failed to beat the Foals in their last five matches across all competitions, with Gladbach winning three and drawing two.
No financial details were disclosed, but Italian media reported that the 27-year-old has joined Simone Inzaghi's side for a fee of around 32 million euros ($34.94 million), signing a five-year contract.
Plagued by defensive errors and a low conversion rate in attack since last year's departure of striker Robert Lewandowski to Barcelona, Bayern look to have carried these ailments into the new season.
Bayern, who kick off their season later on Saturday in the Super Cup against RB Leipzig, said the 30-year-old striker was signed until 2027 after protracted talks between the two clubs.
The English club and Bayern had reportedly agreed on the move on Thursday but needed the consent of Kane, who has another year on his contract at Tottenham.
Tuchel, who took over from sacked Julian Nagelsmann in late March, has now seen his team crash out of two competitions in two weeks after they were also knocked out of the German Cup by Freiburg in the last eight.
It was City's 15th consecutive game without defeat across all competitions and Pep Guardiola's team, losing finalists in 2021, will next face holders Real Madrid in the last four.