Nagoya Grampus striker Frode Johnsen admits he is surprised by his side's challenge for the 2008 J. League title, but is taking nothing for granted as the season moves into its final stretch.

Grampus sits top of the table, one point ahead of nearest challenger Kashima Antlers, Urawa Reds and Oita Trinita, in a remarkable turn of fortunes since last season's disappointing 11th-place finish.

A change of managers during the offseason, with former playing legend Dragan Stojkovic replacing PSV Eindhoven-bound Sef Vergoosen, brought excitement among the fans but uncertainty among players forced to adapt to a new regime.