Plus: the last stripey-shirted league winners; Atlético Madrid's bear-based badge; and did Rangers beat Dortmund 8-0? Email your questions and answers to knowledge@guardian.co.uk

"Other than Blackburn's recent David Betnley gaffe, have there been any other instances of footballers' names being spelt wrongly on the back of their shirts?" asks Pete Warren.

Oh yes, Pete. Plenty. Let's start with the one that seems to have tickled most correspondents' fancy: the time David Beckham morphed into David 'Beckam' during the 1997 Charity Shield against Chelsea. "I thought the lads were winding me up," he is reported to have said at the time. "Then I saw it for myself. It was too late to do anything about it, so we all had a laugh instead."

If you think such basic typographical errors are limited to one of the richest sporting institutions in the world, you'd be half-right. When John O'Shea turned out for Manchester United against Real Madrid in the Champions League quarter-final second leg at Old Trafford in April 2003, his shirt bore the legend 'S'hea', prompting one talkboard wag to speculate that the club were saving their Os for the arrival of Wayne Rooney.

Completing an unholy trinity of United spelling howlers is their Polish goalkeeper Tomasz Kuszczak. Now, the potential pitfalls here demand sympathy. Except that the person responsible for imprinting names on shirts was presumably concentrating so hard on that tricky 'zcz' combo that when Kuszczak played only his second game for United, in a Carling Cup tie against Crewe in October 2006, he mysteriously became 'Zuszczak'.

Cláudio Gameiro writes from Portugal with news of the Sporting Lisbon striker Liedson, who might be the only player actually happy to live with a misprint. Liedson scored on debut in 2003, when the 's' in his name was printed the wrong way round. "That made it look like a z," says Cláudio, "and he continued to wear the z shirt for the rest of the season as a lucky charm and trademark. Apparently, it worked: he passed the 100-goal mark for Sporting a few weeks ago."

The Guardian's very own Steve Claridge can confirm he shrugged off the indignity of becoming 'Clarridge' during a televised game for Leicester against Sheffield Wednesday in 1996-97 to score what Tom Reville describes as a "rare screamer", while Costa Rica's Mauricio Wright was turned into 'Wrigth' for his country's World Cup game against China in 2002.

And for the best howler-related chant? "There's only one h in Palace," as sung by the Selhurst Park faithful after the club's name was rendered "Chrystal" on the team shirt's badge in 2004.

Any more for any more? Then email us at knowledge@theguardian.com.

THE BLIGHT STRIPES

"Which was the last team to win the English top flight playing in a striped home kit?" asks Stuart Young.

Well Stuart, it basically all depends on how discerning you are about your stripes. Obviously we're not going to count teams with a few skinny lines down their sleeves and shorts, nor indeed will we accept Blackburn's half-and-half blue and white blocks, but would you accept the alternating shades of red on Arsenal's title-winning top from 1988-89?

If not then the white pinstripes Liverpool sported during their triumphant 1983-84 campaign (and indeed in 1982-83), are a little more clear cut. But if you'll only settle for wholehearted, chunky, even slices of markedly different colours, then you actually have to go all the way back to 1935-36, when Sunderland won the old first division in their traditional red and white.

CRAZY BEAR

"Can someone please tell me why the Atlético Madrid club crest contains what looks like a bear trying to get jiggy with a cherry tree?" wonders Steve Guy.

Well Steve, you have obviously never been to Puerta Del Sol square in Madrid, because you would have seen the 20-tonne statue known as El Oso y el Madroño, a life-size model of a bear doing nothing more than sniffing a Madroño tree.

The story goes that the word Madroño sounds like Madrid, so the tree was adopted as a symbol of the city. Bears used to be common around Madrid, so the two items were thrown together and they now appear on the city's taxis, buildings and man-hole covers. Atlético added the bear and tree to their badge at some point between 1903 and 1919, and the seven stars on the club crest represent the autonomous region of Madrid (or Big Bear constellation).

If you think the Madrid bear is looking lustful, have a look at the similar-looking Warwickshire coat of arms. Warwickshire county cricket club, meanwhile, have chosen a more-restrained version.

KNOWLEDGE ARCHIVE

"Did Glasgow Rangers ever beat Borussia Dortmund 8-0?" wondered Aeneas9 back in 2005.

Close, but it was in fact Borussia Mönchengladbach who suffered that particular ignominy in the European Cup Winners' Cup of 1961, the inaugural year of the competition. Ralph Brand scored a hat-trick in that match, before Rangers bagged three more in the second leg to win 11-0 on aggregate. They reached the final of the competition that year, becoming the first Scottish club to reach that stage of a European competition. Sadly, it wasn't to be a happy ending for the Gers, who were beaten 4-1 by Fiorentina over two legs.

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"On Saturday, Finland beat played Azerbaijan with Jari Litmanen coming off the bench to play, despite not currently being registered with a club," notes Eerwego. "Have any other non-registered players ever played for their country?"

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