Button to replace Alonso for Monaco Grand Prix

Updated: 

McLaren have confirmed that Jenson Button will replace Fernando Alonso at the Monaco Grand Prix next month.

Button took a sabbatical from Formula One this season, but the 2009 world champion agreed to stand in if a reserve driver was needed.

The Brit has now been called upon after Alonso was allowed to race in the Indianapolis 500 on May 28 - the day of the glamorous race in the principality.