Peterborough have signed Middlesbrough defender Hayden Coulson and Huddersfield midfielder Reece Brown on loan until the end of the season.
Coulson, 23, signed on loan for Ipswich at the start of the season and made six League One appearances before being recalled.
Brown, 25 spent last season on loan with Posh and helped them win promotion to the Championship.
Both players could feature against QPR in the FA Cup on Saturday.