London 2012 medallists Natasha Baker and Louis Smith have updated their Twitter profiles with their new titles.
They were formally presented with their honours by the Queen earlier today.
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Police arrived at the 73-year-old's home after Alfie chased a delivery man.
Officers believe the three assaults are linked and are appealing for information about the suspect.
Nine addresses in Lewisham were searched and 13 arrests made early on Tuesday morning in a planned, intelligence-led operation.