Sheffield Utd boss Weir welcomes deal for Cardiff defender Lappin
The 30-year-old former St Mirren and Norwich man has not appeared for the Bluebirds since joining them on a permanent deal in January.
Weir told BBC Radio Sheffield: "He's been successful in this league and he's a leader. He adds to our depth in a number of positions."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball