After the brilliant Robert Pires sustained a long term injury in March 2002, question marks were raised over Arsenal's ability to last the run-in without one of their major creative influences and goalscorers.
It's also worth noting that 4 of his goals were set up by Dennis Bergkamp passes. The two had an excellent understanding of each other in their time at Arsenal, and Ljungberg would often make diagonal runs from the wing into the box, safe in the knowledge that Bergkamp would pick him out even through the tighest of gaps.