Callum McNaughton has extended his stay at league newcomers AFC Wimbledon for a month until 9 November.
The central defender has played six times for the Dons already, having also made his Hammers first-team bow this season. McNaughton's arrival has coincided with a good run of form with Wimbledon up to fourth in League Two and through to the Johnstone's Paint Trophy quarter-finals.
Having overcome a succession of injuries to first earn a third-year scholarship, be made reserve-team captain and finally be rewarded with a professional contract in the summer of 2011, McNaughton has made good progress through the ranks at the Boleyn Ground.
The popular Bishop's Stortford-based defender's most recent league outing saw him perform well against club-mate Frank Nouble in a 3-1 defeat of Gillingham last Saturday. Nouble is also on a short-term stay with the Gills.