Saracens rugby director Mark McCall reflected on another assured performance by fly-half Alex Lozowski after he marked his England squad call-up with a starring role against Bristol at Ashton Gate.

Lozowski claimed a try double and kicked two conversions in Saracens' bonus point 39-0 victory, as he shone less than 12 hours after being named by Eddie Jones in a 45-man England elite player group.

"It has been a bit of a whirlwind for Alex," McCall said.

"He was third choice at Wasps last season, but Owen (Farrell) has got an injury, and he has been chucked in at the deep end and done pretty well.

"We saw a player with real growth and potential. What he needed was some time in the saddle and just playing games, and he is getting that now with Owen's injury."

Lozowski's half-back partner Ben Spencer added two conversions and two penalties, while full-back Chris Wyles, hooker Jamie George and lock George Kruis also touched down as Saracens reclaimed Aviva Premiership top spot from Wasps.

"I thought it was a really good professional performance by us," McCall added. "It wasn't perfect, but I thought we dominated the game and dominated field position.

"We put them under a lot of pressure, and 10-0 didn't feel a satisfactory lead at half-time, but I think all of that hard work paid off in the second-half and we were able to get the bonus point that we wanted.

"I was pleased with our energy, and when we had to defend we defended with real intent. The pressure eventually told, and we got what we wanted from the game, which was pleasing."

Bristol, as they had done in previous Ashton Gate outings this term against Northampton and Exeter, battled hard throughout the contest, but they remain four points adrift at the foot of the Premiership ahead of a testing trip to Newcastle next weekend.

Bristol rugby director Andy Robinson said: "I am disappointed in the result. We started a lot better, but again, we haven't performed for 80 minutes.

"One of the things we talked about was to build pressure on the opposition, but we turned over possession in our first two attacks, and we are not going to able to build pressure on the opposition if we do that.

"We made some courageous tackles and worked very hard, but Saracens kept their accuracy and throughout the game put us under massive pressure.

"It is something these guys have got to learn. Are we learning fast enough? We will find out next weekend when we play Newcastle.

"Newcastle are a very good side, and I have been impressed with the way they've started the season. It is going to be another tough encounter for us.

"But I've said to the players they need to get themselves ready, recover very quickly and those who are selected need to put in a performance."