Neil Harris will assess Frankie Fielding’s injury before deciding whether to delve back into the transfer market.

Goalkeeper Feilding, 31, was making his competitive debut for the Lions in their 1-0 win over Preston before a hamstring injury cut his afternoon short.

The summer recruit was replaced by Bartosz Bialkowksi, 33, who himself had only joined the club from Ipswich midweek.

Harris, despite the obvious delight of having the luxury of being able to bring on Ipswich’s Player of the Year for the last three seasons, expressed his sympathy to Fielding.

“It’s disappointing for Frankie of course,” he said.

“Frankie had the shirt because Bartosz only came in this week.

“Now through Frankie’s misfortune Bart gets the shirt.

“Hopefully Frankie gets back and continue that rivalry, as we’ve got two senior keepers to fight it out for the shirt.”

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Harris heaped praise on his new goalkeeper despite not being called into action by a disappointing Lillywhites side.

“We dealt with the Frankie Feilding scenario well.

“When you’re brining on Bartosz, Player Of The Year year after year, the experience he has at this level, woah.

“Talking about a goalkeeper coming on for his debut and unsettling the team, he came on and looked like he’d played 100 games for Millwall!

“He came on and brought an air of calmness for him.

“Came on at a good time just before the half, and had a good warm up at half time.

“He wasn’t fazed, I said, ‘alright big man?,’ he said, ‘yeeeeaaaahhh.’

“He just wanted to get out there and play.”

Regarding Fielding’s injury and the length he’ll be out, Harris admitted it’d be a surprise if he’ll make next weekend’s fixture at West Brom, but until he’s had a scan it can’t be decided if it’ll be weeks or months or whether they'll need to go back in the transfer market.