Question: What kind of surgeries did the most recent top scorer in the Romanian Football Liga I retire to heal from ?

text: List of Romanian football champions
List -- Liga I ( 2006–present )

The Romanian football champions (Romanian: campionii României la fotbal) are the winners of Liga I, Romania's premier annual association football league competition. The title has been contested since 1909 in varying forms of competition. Steaua București has won a record 26 championship titles, thus making it the most prolific team in the Liga I. The second most successful team in the league is Dinamo București with 18 championship titles. The Steaua-Dinamo rivalry, also known as the Eternal Derby, is the biggest one in the Romanian football championship, and between the two teams, they have won the championship 44 times and finished as runners-up another 36 times during the 100 completed seasons. The third most prolific team was Venus București which won all of its titles during the early editions of the championship, winning eight trophies before its dissolution in 1949. Since the first edition in 1909-10, the league has been won by 23 teams representing 12 cities, with nearly two-thirds of all editions (59 titles) being won by teams from the capital, Bucharest. The 2007-08 champions CFR Cluj were the first team outside Bucharest to win the championship in 16 years. The first Romanian Football Championship was held between December 1909 and January 1910 and included three teams, two from Bucharest and one from Ploiești. The title was decided using a knock-out format, with Olympia București being the inaugural winners. The knock-out format was used until the 1921-22 season, when a league consisting of seven teams was formed. The regular regional leagues season was followed by a final tournament featuring the first placed teams of each region.
Season Winner Runner-up Third place Top scorer ( Club - Goals )
2006-07 Dinamo București ( 18 ) Steaua București CFR Cluj Claudiu Niculescu ( Dinamo București - 18 )
2007-08 CFR Cluj ( 1 ) Steaua București Rapid București Ionel Dănciulescu ( Dinamo București - 21 )
2008-09 Unirea Urziceni ( 1 ) FC Timișoara Dinamo București Gheorghe Bucur ( FC Timișoara - 17 ) Florin Costea ( FC U Craiova - 17 )
2009-10 CFR Cluj ( 2 ) Unirea Urziceni FC Vaslui Andrei Cristea ( Dinamo București - 16 )
2010-11 Oțelul Galați ( 1 ) FC Timișoara FC Vaslui Ianis Zicu ( FC Timișoara - 18 )
2011-12 CFR Cluj ( 3 ) FC Vaslui Steaua București Wesley ( FC Vaslui - 27 )
2012-13 Steaua București ( 24 ) Pandurii Târgu Jiu Petrolul Ploiești Raul Rusescu ( Steaua București - 21 )
2013-14 Steaua București ( 25 ) Astra Giurgiu Petrolul Ploiești Liviu Antal ( FC Vaslui - 14 )
2014-15 Steaua București ( 26 ) ASA 2013 Târgu Mureș CFR Cluj Grégory Tadé ( CFR Cluj - 18 )
2015-16 Astra Giurgiu ( 1 ) Steaua București Pandurii Târgu Jiu Ioan Hora ( Pandurii Târgu Jiu - 19 )
2016-17 Viitorul Constanța ( 1 ) Steaua București Dinamo București Azdren Llullaku ( Gaz Metan Mediaș - 16 )
2017-18 CFR Cluj ( 4 ) Steaua București Universitatea Craiova George Țucudean ( Viitorul Constanța , CFR Cluj - 15 ) Harlem Gnohéré ( FCSB - 15 )
2018-19 CFR Cluj ( 5 ) Steaua București Viitorul Constanța George Țucudean ( CFR Cluj - 18 )