George Karl, exhausted after a Game 4 loss, reminds us that ‘losing’s no fun’ (VIDEO)Kelly DwyerBall Don't LieMay 7, 2012George Karl is the very definition of an NBA lifer. Though the former ABA role player's career only lasted for 33 post-merger NBA games, Karl has been coaching in the NBA (with respites in both the CBA, Spain, and a stint spent on ESPN's set) since 1984. And he's yet to win a title. And, following Denver's loss to the Los Angeles Lakers on Sunday night, and the onset of a 1-3 series deficit, it's apparent that this is probably not Karl's year. Again.Which is why Karl seemed a little frustrated, if not down, after his Nuggets lost their chance to tie the series at home on Sunday. And you can't blame the man. This year's model doesn't boast the same championship capability as Karl's Seattle SuperSonics teams from the 1990s (make no mistake, those were championship-level clubs in each year between 1994 and 1998), but the Nuggets are still a very good if flawed basketball team. And this year, like every other NBA season (Karl has won championships in the CBA), Karl will likely fall short. And that has to wear on a guy.Game 5 is on Tuesday, just a week removed from Denver giving the Lakers all they could handle in a Game 2 Lakers win, and just four days removed from Denver's blowout win over Los Angeles. George Karl coaches a team that can compete with the Lakers, and every other team in this playoff bracket, and to see his team fall short again despite its obvious gifts … well, you can see the result in the video above.