 Complete the following phrase:  Allianz owned the Polish football team Górnik Zabrze but sold its shares in the club in April 2011. Allianz has been involved in Formula One since 2000, firstly as a sponsor of the ATT Williams F1 Team, and since 2011 as a sponsor of the Mercedes GP Petronas team. In 2009 Allianz signed an agreement to become the Global Partner of the St. Andrews Links Trust. In early 2012, Allianz entered an agreement with the Sydney Cricket  Sports Ground Trust which oversaw the Sydney Football Stadium being renamed Allianz Stadium. 2012 also saw Allianz partner up with Saracens to be their main shirt sponsor as well as securing an 8m deal for naming rights to their new Copthall Stadium home which became Allianz Park. This deal was terminated on 25 October 2020 following the conclusion of the 