Loanee Hogan Ephraim had a hand in both goals on his Peterborough debut as a late burst earned the League One high-fliers a 2-0 win
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QPR manager Harry Redknapp had to be carried to the Directors' Box ahead of his team's pre-season friendly with Exeter City at St James Park.
The 66-year-old had knee surgery on Tuesday and could be on crutches for six weeks.
He was unable to walk up the steep steps of the Flybe stand, and had to be carried on his wheelchair by stewards. A QPR fan also helped carry him.
The match finished goal-less, and the two sides will meet again on August 6 in the Capital One Cup.
Exeter have completed the signing of former Leicester striker Elliott Chamberlain after a successful trial. The 20-year-old, who was released by the Foxes at the end of last season, is expected to go straight into the squad for Tuesday's game at Aldershot.