Ki, 26, spent last season on loan at Sunderland after falling out of favour with ex-Swansea manager Michael Laudrup, making 34 total appearances for the club, while also recording four goals and four assists.
Since establishing himself as a regular in Garry Monk’s line-up, the South Korea international had started all put one league game prior to jetting off for the Asian Cup last month, where he captained his side through to the final.
Falling 2-1 in extra-time to hosts Australia, Ki is now back at the Liberty Stadium and, despite playing six games in just 23 days, is keen to come straight back into the team for the weekend.
“It’s good to be back,” he said. “I had a great time in Australia, but now I’m ready to work hard for Swansea.
“I was following Swansea’s results while I was in Australia. There were a few unexpected results in there, but I know there was a lot of injuries and suspensions to deal with.
"As soon as the Asian Cup finished I couldn’t wait to get back to Swansea. I was desperate to get back and help push the club higher up the table.”
With Ki absent, the Swans tasted mixed Premier League fortune, with a 5-0 defeat to Chelsea sandwiched between a 0-0 draw with West Ham United and 1-0 win at Southampton.
The influential midfielder is hoping to help his side instil some more consistency over the second half of the season, starting with Saturday’s visit of the Black Cats.
“I had an enjoyable time at Sunderland. It’s a very nice club and it’s going to be a bit strange playing against them if I'm selected on Saturday,” he said. “
“But our priority is three points. It seems like a long time since we won at home – over a month – and we need a victory for the fans."