Olympic 1500 metres silver medallist Nick Willis will line up tomorrow in the star-studded Bowerman Mile at the famous Prefontaine Classic in Eugene, Oregon, round four of the IAAF Diamond League.
Willis has the 10th fastest mile time in the field, with seven competitors boasting personal bests under 3 minutes 50 seconds.
Willis' best of 3 minutes 50.66 seconds, was recorded when he finished second at the Prefontaine Classic in 2008, just months before his Beijing success.
The New Zealand 1500m record holder finished 10th in 2011 in a time of 3m 51.95, his second-fastest mile.
He would like to go under the 3m 50s mark and challenge John Walker's New Zealand record of 3m 49.08.