It is bad enough that they top England's World Cup group with one crunch game to go, but one Slovenian appearance at Wimbledon tomorrow will create further red faces.
Blaž Kavcic is a name few people in this country will recognise, but, back home, the whole country will be cheering him on as he becomes the first representative from Slovenia ever to feature in the men's draw. Kavcic, currently without a coach, made the draw thanks to the Croatian Ivo Karlovic pulling out with a foot injury. By contrast, 2010 will be the first year in the tournament's 133-year history where no Englishman features.
For the 23-year-old Kavcic, who lost at the final qualifying stage last year, his appearance is a dream come true.
"I didn't have the opportunity to come to Wimbledon last year," he said after finishing a late lunch at the All England Club yesterday, "because the qualifiers were in Roehampton. For many players this is the best tournament, so it's very special for me to be here. This was always my dream, to play in a big court at Wimbledon."
Kavcic, unlike England fans, has been enjoying the football, tweeting his delight at Slovenia's performances ahead of the deciding group game against Wayne Rooney and co on Wednesday. "I watched the Slovenia against US game in one of the club rooms at Wimbledon, but there were far more American fans than Slovenian. I made some noise, though. I told all the Americans at the French Open that, OK, I lost today, but Slovenia would have its revenge at the World Cup! It almost happened. I was a bit disappointed we didn't get the three points, but we are still top."
With a population of just over two million, Slovenia is the smallest nation in the World Cup, but, in contrast to England, has exceeded expectations.
"We're doing well against all these big countries," says Kavcic. "People are starting to realise where Slovenia is. Before, we were always being mistaken for Slovakia! It made us a bit angry, but I hope that has changed now. People should be able to find us on a map."
As for Wednesday's football, Kavcic is quietly confident. "England really need a win, so I think they have much more pressure. We've been so strong so far, I hope we can do it."