The 24-year-old tweaked his ankle going in for a challenge with Ramires in the closing stages of game at the Liberty Stadium.And the South Korea international has admitted that he feared the injury would be worse than eventually transpired.
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"I seriously thought I might miss Wembley when that happens. I thought I might not be able to play for two or three months, but I was very lucky."
However, after getting the all clear, Ki has now set his sights on earning a starting berth for the final against Bradford.
"We're all fighting for a place in the team at Wembley," he added. "Every player is ready to play. We have shown this season that anyone can come in and do well.
"We have got good strength in this squad."