sentences:  While the club won its group, they were quickly eliminated by Arsenal in the first knockout round.Prior to this season, Milan had made it to at least the quarterfinals of every Champions League going back to the 2002–03 edition.After a poor domestic season the year prior, the club made numerous additions during the off-season, signing Ronaldinho from Barcelona and re-acquiring former star Andriy Shevchenko from Chelsea, in addition to adding Gianluca Zambrotta, Marco Borriello and Mathieu Flamini, amongst others.