Question: Conny Torstensson won national tiles playing for what team that calls the Kopparvallen stadium home?
Context: The Kelowna Falcons are an amateur baseball team located in Kelowna, British Columbia.  Formally known as the Kelowna Grizzlies, the club was purchased in 2000 and changed its name to the Falcons.  They play in the West Coast League, a collegiate summer baseball league.  Kelowna calls Elks Stadium home with the capacity of 1250. Kopparvallen is a multi-use stadium in Åtvidaberg, Sweden.  It is used mostly for football matches and is the home stadium of Åtvidabergs FF.  The stadium holds 8,000 people and was built in 1907.  Famous football players who have played in the arena is Ralf Edström, Roland Sandberg, Conny Torstensson, Zlatan Ibrahimović and Pelé. Arena Khimki (Russian: «Арена Химки» ) is a football stadium in Khimki, Moscow Region, Russia.  The stadium holds 18,636 spectators and was opened in 2008 to become the home stadium of FC Khimki.  Since 2009 Dynamo Moscow have also been playing at the Arena Khimki as their home, Dynamo Stadium, has been undergoing reconstruction.  When FC Khimki were relegated from the Russian Premier League, they left for Rodina Stadium and CSKA moved to the Arena Khimki from the Luzhniki.  The stadium has 6 VIP quadrants 14 individual sky-boxes.  The natural pitch does not have any analogues in Russian Federation.  The Arena Khimki is the only stadium in Russia using SGL technology.  In the winter of 2010, the Arena Khimki became the first stadium in Russia and CIS equipped with PROZONE system.  Besides Russian Premier League matches, the Arena Khimki hosted Champions League Matches (Dynamo-Celtic), Europa League Matches, Russian Cup final in 2009 and matches of Russian national team U-21 in 2009. The 1977 New York Jets season was the 18th season for the team and the 8th in the National Football League.  It began with the team trying to improve upon its 3–11 record from 1976 under new head coach Walt Michaels and beginning the post-Joe Namath era.  However, the Jets struggled with their third consecutive 3-11 season.  They won a major off the field court decision.  As per the memorandum of understanding signed in late 1961 by team original owner (as the New York Titans) Harry Wismer, Shea Stadium's co-tenants, the New York Mets, would have exclusive use of the stadium until they had completed their season.  The Jets were, in most years, required to open the season with several road games, a problem made worse in 1969 and 1973 when the Mets had long playoff runs.  Feeling that this arrangement was a disadvantage, the team announced in 1977 that they would play two home games a year during the month of September at the Giants' new home in New Jersey, Giants Stadium.  Litigation began between New York City and the Jets over the issue, and in the lawsuit's settlement, the city agreed to allow the Jets to play two September home games a season at Shea beginning in 1978 for the remaining six years in the Jets' lease.  In 1977, the Jets were to play one September game at Giants Stadium and an October 2 game at Shea.  From 1967 through this season—a span of 11 seasons—the Jets did not play a home game at Shea Stadium in the month of September.  As of 2017, the Jets are the first (and so far, only) team in NFL history to finish 3 straight seasons with only 3 wins.  Since the NFL schedule expanded to 16 games in 1978, no team has finished 3-13 3 years in a row. Stadium Australia, commercially known as ANZ Stadium and formerly as Telstra Stadium, is a multi-purpose stadium located in the Sydney Olympic Park, in Sydney, Australia.  The stadium, which in Australia is sometimes referred to as Sydney Olympic Stadium, Homebush Stadium or simply as the Olympic Stadium, was completed in March 1999 at a cost of A$690 million to host the 2000 Summer Olympics.  The current chairman of the stadium's Advisory Board is Robert Webster.  Every year since the stadium was built, the New South Wales rugby league team's home games in the State of Origin series have been played there.  Also the stadium has since hosted the annual National Rugby League grand final.  ANZ Stadium also hosted the 2003 Rugby World Cup finals and Bledisloe Cup matches, regular Sydney Swans and Greater Western Sydney Giants AFL matches, as well as international soccer matches featuring Australia's national team the Socceroos, and exhibition games by Sydney-based A-League team Sydney FC.  The stadium also hosted the 2015 AFC Asian Cup final. The Walla Walla Sweets is an amateur baseball team located in Walla Walla, Washington.  They play in the West Coast League, a collegiate summer baseball league.  Walla Walla calls Borleske Stadium home which has a capacity of 2,378 spectators. The 1994 Seattle Seahawks season was the team's 19th season with the National Football League.  The 1994 season was head coach Tom Flores' last with the team.  The team played their first three home games of the season at Husky Stadium due to the collapse of four ceiling tiles at the Kingdome on July 19. Boris Paichadze Dinamo Arena, formerly known as Lenin Dinamo Stadium and later Boris Paichadze National Stadium, is a stadium in Tbilisi, Georgia, and the home stadium of Dinamo Tbilisi, Georgia national rugby union team and Georgia national football team.  With a capacity of 54,549, the stadium is the largest in Georgia.  Built in 1976 by the Georgian architect Gia Kurdiani, the Dinamo Arena was named Vladimir Ilyich Lenin Dinamo Stadium after Russian Communist leader but later, in 1995 was renamed to Boris Paichadze National Stadium after the famous Georgian football player Boris Paichadze.  Prior to the construction of Boris Paichadze Dinamo Arena, the home stadium of Dinamo Tbilisi was the Central Stadium with an approximate capacity of 35,000 spectators.  The demand for a much bigger stadium was increased with the successful performance of Dinamo Tbilisi in the mid 1970s.  After the inauguration of the stadium, it became the third-largest in the Soviet Union, with a capacity of 74,354 spectators. Nagai Station (長居駅, "Nagai eki") is a railway station in Sumiyoshi-ku, Osaka, Japan.  The station is served by the Hanwa Line of West Japan Railway Company (JR West) and the Midōsuji Line of Osaka Municipal Subway; the former uses elevated tracks and the latter uses underground tracks.  The subway station is assigned the station number M26.  Nagai is located south of Tennoji in Sumiyoshi-ku and maintains Nagai Park and Nagai Stadium, an international standard football stadium home to the J-League team Cerezo Osaka. Conny Torstensson (born 28 August 1949) is a former footballer from Sweden.  With Sweden he participated at the World Cups 1974 FIFA World Cup and 1978 FIFA World Cup.  With Åtvidabergs FF he won national titles.  Later he belonged to the side of Bayern Munich which dominated international club football in the mid-1970s.
Answer: Åtvidabergs FF