Tony Capaldi admits he would have 'regretted' spurning the opportunity had he not decided to join Leeds.
The Northern Ireland international, frustrated by a lack of action at Cardiff, has joined the Whites on loan until 4th January.
With Leeds currently flying in their pursuit of the League One title, and with the club still held in high regard throughout English football, Capaldi insists the chance to move to Elland Road was too good to turn down.
The 28-year-old defender has even refused to rule out the possibility of extending his association with Simon Grayson's side past the New Year should everything work out well for him in West Yorkshire.
"I did hear a whisper that Leeds were interested a couple of weeks back, but the phone calls started on Monday," Capaldi told Leeds' official website.
"It looks like Leeds are on the way up, they are flying at the minute, but it's not just that, it's a massive club with a big fanbase and it's a chance in your career to come to a club like this.
"If I hadn't have taken it I'd have regretted it for the rest of my life.
"I'll do my best and see what happens. It's up to me to play well over the next few weeks and sit down with the gaffer in January and see where we are."