 Complete the following phrase:  At the end of a season in which Chelsea exchanged places at the top of the table with Manchester United several times, and were briefly leapfrogged by Arsenal, they sealed their third Premier League title in six seasons with an emphatic 80 home win over Wigan on the final day of the season. The win also took Chelseas league goal tally for the season to 103, the highest since Tottenham Hotspur scored 111 in the 196263 season, and the first time in Premier League history that a club had scored 100 or more goals in a season. Drogba, Lampard, Anelka and Florent Malouda all scored double figures. A week later, Chelsea completed the first league title and FA Cup double in their history by beating Portsmouth 10 in the 