Michael Laudrup watched his Swansea side see off Barnsley in the Capital One Cup and then steeled himself for a "very busy" end to the transfer window.
The Swans booked a place in the third round with a 3-1 win courtesy of a double from Luke Moore and a Danny Graham strike, Bobby Hassell finding the net for the battling Tykes.
The victory came at the end of a day where the drawn-out saga over Scott Sinclair's proposed move to Manchester City took another twist.
Press Association Sport understands Swansea rejected a £6.2million offer, but Laudrup still expects a hectic few days of ins and outs at the Liberty Stadium, which could include the acquisitions of Valencia's Pablo Hernandez and Middlesbrough's Marvin Emnes.
Laudrup said: "I think it will be very busy. Everyone here will have to be working hard over the next three days to make sure we are not in a situation where a club is saying 'the fax is not working'.
"I tried that, where a fax wasn't working in a club and they signed a player a little too late. Luckily I think we have two or three fax machines here."
Laudrup would not confirm or deny that an offer had been rejected for Sinclair, but admits the deal could still happen before the cut-off point.
Swansea are understood to be holding out for a fee of around £7million.
The Dane said: "I really don't know where we are at the moment.
"Even if talks have broken down there is still time for everything to happen. I am not saying he will go, or he will stay.
"The point where we are now could change completely.
"From a manager's point of view, Scott is an important player and he plays in a position where we don't have that many players and if he leaves we need another one.
"That's the balancing act and the closer we get to the deadline the more difficult it will be."
Barnsley boss Keith Hill, meanwhile, was "encouraged" by his side's effort following on from their 5-1 hiding at Brighton at the weekend.
"I am encouraged, after Saturday I felt I had been dealt a low blow to the groin area. We needed to take tiny steps and we got them," he said.
"But at the minute, like last season, we are guilty of shooting ourselves in the foot with the individual errors we are making.
"The three goals were avoidable, but we can take a lot of encouragement."
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