He won the golden boot (12 goals, including two hat-tricks) in the 2012-13 ASB Premiership, including the last-gasp winner in the final against Auckland City and he also grabbed six goals in eight games in Waitakere's OFC Champions League campaign.
Krishna signed with Waitakere in January 2008, transferring from his local club Labasa FC. Coming to Auckland was a massive culture shock.
Labasa is a small town (population 23,000) with a relaxed lifestyle, well off the tourist track, and Krishna had limited English.
He made an instant impression in his first NZFC season and was invited to spend a few weeks at the Wellington Phoenix in May 2008.
It was ostensibly to provide an introduction to professional football for the then 20-year-old but he wasn't picked up.
In March 2009, the Herald on Sunday reported that Dutch giants PSV Eindhoven were interested but it was decided that he wasn't ready for a move to Europe at that stage. A transfer to the A-League has been occasionally mooted since then but has never come to fruition.
Derby County enjoyed their halcyon days in the early 1970s, when they became champions of England under legendary manager Brian Clough (in 1972) and also reached the semifinals of the European Cup. They won the title again that decade, in 1974-75.
Derby have since enjoyed spells in the top flight but were last in the Premier League in the 2007-08 season, when they were relegated by March. They are currently managed by Nigel Clough, son of Brian.