League One outfit Brentford have completed the loan signing of Wigan defender Rob Kiernan.
The 21-year-old will be with the Bees until 5 January.
Boss Uwe Rosler said: "I have a good relationship with Roberto Martinez and we have been following Rob closely."
He added: "We had him here last summer [during pre-season] and he has made big strides at Wigan since then.
"We have been looking for somebody who has the qualities that Rob has."