The bottom-placed Daredevils lost their 12th and final match of the season on Sunday with a seven-wicket defeat against Kings XI Punjab.
I'm sorry to all our wonderful fans! What we did this IPL wasn't good enough! I will accept a lot of the blame as capt - only fair! Sorry!— Kevin Pietersen (@KP24) May 25, 2014
Pietersen scored 294 runs in 11 matches for Delhi during the campaign.