He said afterwards: "I’m grateful for the manager to put his trust into a young goalkeeper and hopefully I can repay him. I didn’t find it too bad and some of the experience I’ve had on loan at Walsall has helped me."
Yeovil manager Gary Johnson added: "Sam looked very solid but just got caught out as it was windy. He'll be OK."
Ryan Tunnicliffe made a second consecutive substitute appearance for Ipswich Town against Queens Park Rangers.
The midfielder came off the bench at half-time at Loftus Road but was unable to inspire the Tractor Boys, who were stunned by Tom Hitchcock’s 90th-minute winner.
Reece James was not involved in Carlisle United’s 4-0 defeat to Coventry City in League One, having returned to Old Trafford earlier this month for assessment on a thigh problem.
Carlisle boss Greg Abbott said last week: "We're not certain how long we'll be without Reece but we want him back with us as soon as possible."
More: Johnstone joins Yeovil | James departs on loan | Tunnicliffe loaned to Ipswich