The biggest selection conundrum for New Zealand cricket coach Mike Hesson and captain Brendon McCullum (when he arrives in England from the Indian Premier League) is whether Martin Guptill or Hamish Rutherford will open with Tom Latham in the first test against England at Lord's this week.
Guptill is considered to be over the defensive frailties which meant his last test was two years ago at Headingley.
He's been in form since arriving at Derbyshire, scoring 451 runs at an average of 112.75, including a first-class best of 227 against Gloucestershire.
The 28-year-old opened with Latham on Friday night (NZT) at Worcestershire, making 35 off 53 balls in his return from a side strain. Donning the pads first indicates he has the edge over Rutherford.
Guptill's resume also includes the outstanding form he mustered opening at the World Cup, when he was the tournament's top run-scorer. He made 547 at 68.37 and a strike rate of 105 after overcoming intense scrutiny of his performances leading in. Guptill's coup de grace was 237 not out in the quarter-final against the West Indies in Wellington, the highest score in 11 editions of the tournament.