Andrew Flintoff will miss two of England's three Test matches against New Zealand because of a side strain.

The all-rounder experienced discomfort on the left side of his body during Lancashire's win over Durham at Old Trafford on Friday.

"It's frustrating to have picked up an injury at this time," said Flintoff.

"I want nothing more than to return to the England side and will continue to do everything required to make myself available for selection."