Posh sign winger Williams and forward Masara

Ethan Williams joined United's pre-season tour of Finland, Norway and Sweden [Getty Images]Peterborough United have signed winger Ethan Williams and forward Vernon Masara for undisclosed fees.Posh said the fee paid to Manchester United for Williams was "sizeable". The 20-year-old as recently part of the Red Devils' pre-season tour of Finland, Norway and Sweden.Williams did not make a senior start for the Premier League club, but previously spent time on loan at League Two Cheltenham Town and mos