Luka Modric of Tottenham Sold to Real Madrid
* Croatian playmaker signs five-year contract
* Real looking to put poor season start behind them
* Deal worth as much as 42 million euros, media report
MADRID, Aug 27 (Reuters) – Real Madrid have completed the signing of Croatia playmaker Luka Modric from Tottenham Hotspur as the stuttering Spanish champions seek an injection of guile and creativity to get their troubled season back on track.