Exeter began their Heineken Champions Cup defence in dominant style, keeping Glasgow scoreless as fans returned to Sandy Park.

Gray's fellow former Warrior Stuart Hogg also scored against his old side.

Jack Yeandle's try sealed a bonus point which could prove crucial in this season's shortened group-stage format.

Wing Olly Woodburn and returning England lock Jonny Hill gave Exeter's points difference an extra boost with a try each before the final whistle.

Teams play home and away fixtures against two sides in their 12-team pool, before the top four in each of the two pools advance to the quarter-finals.

Double champions Exeter dominate again

For the 2,000 in the stands, it was the first chance to see Exeter since they became European and Premiership champions two months ago.

It seemed not much had changed in that time as Glasgow's ill discipline allowed Chiefs to repeatedly kick to the corner, seeking a first score.

Their driving maul was as dominant as ever and Simmonds crashed over before the Chiefs turned to their pick and go, leading to Gray's first try for the club.

Things went from bad to worse for Glasgow as centre Sam Johnson was sent to the sin-bin for repeated infringements at the breakdown.

Fly-half Pete Horne was taken off with a concussion just before half-time and was replaced by Brandon Thomson, with Adam Hastings still unavailable because of injury.

Then hooker George Turner also left the field for a head injury assessment after colliding with Simmonds' shoulder and Grant Stewart came on in his place.

After the break, Woodburn stepped through tackles and created plenty of room for Scotland captain Hogg to score on the right wing.

Turner did not return to the pitch after half-time and as Stewart's line-out throw missed its mark, opposite number Yeandle pounced on the mistake to score the bonus-point try.

Glasgow's head injury count continued to rise as Tommy Seymour, making his 150th appearance for the side, left the field following Woodburn's try.

And the Exeter wing created one final try for his side, breaking through the Warriors' defence before England second row Hill barged over from short range to finish off the move.

Exeter face a tough test next Sunday when they travel to Toulouse, while Glasgow host Lyon on Saturday.

Line-ups

Exeter: Hogg; Woodburn, Slade, Devoto, O'Flaherty; J Simmonds, Maunder; Hepburn, Yeandle (c), Williams, Gray, S Skinner, Ewers, Vermeulen, S Simmonds

Replacements: Cowan-Dickie, Moon, Street, Hill, Capstick, Hidalgo-Clyne, H Skinner, Whitten

Glasgow: Bryce; Seymour, Grigg, Johnson, L Jones; Horne, Price; Kebble, Turner, Z Fagerson, Harley, Cummings, McDonald, M Fageson, Wilson (c).

Replacements: Stewart, Seiuli, Pieretto, Baine, Ioane, Dobie, Thomson, H Jones