Gareth Steenson says Exeter can win Premiership after ending Saracens run

• Chiefs fly-half Gareth Steenson says team will ‘go hard’ against Wasps
• Mark McCall says of Saracens’ 18-16 defeat: ‘We can hold our heads high’Exeter believe they have what it takes to become champions after coming from behind to defeat the European Cup holders, Saracens with a last-minute try before a record crowd at Sandy Park.The try by their replacement No8 Sam Simmonds from a driving maul, after Henry Slade’s 60-metre kick to touch had set u