TJ Oshie goes to Washington Capitals from St Louis Blues

The St Louis Blues traded TJ Oshie to the Washington Capitals in an unremarkable day of NHL trade period action.

Oshie was a microcosm of everything that was good and bad for the Blues in the last three years, but he has been moved on to the Caps - with veteran Troy Brouwer, goaltender Pheonix Copley and a third-round pick in the 2016 draft sent back in return.

Hailed for his regular-season production and nifty shoot-out ability, the 28-year-old winger emerged as an NHL star in St Louis and became an American hero during the 2014 Winter Olympics.

But Oshie receded into the woodwork when it came time for the play-offs with nine just points in 30 post-season games.

For the Capitals, they acquire the best player in the trade. Oshie will be an excellent addition to a talented top six that already includes Alexander Ovechkin, Nicklas Backstrom, Tom Wilson and Evgeny Kuznetsov. Washington also added free-agent winger Justin Williams late on Tuesday, so the roster looks hugely improved.

As for the Blues, they needed to make at least one big change this off-season after their first-round play-off exit against the Minnesota Wild.

Brouwer, 29, has scored 46 goals in the past two seasons.

Another St. Louis - the player - also made headlines on Thursday.

Martin St. Louis announced his retirement after 16 seasons in the NHL. The diminutive winger defied the odds on his rise as one of the league's best goal-scorers at a time when smaller players were few and far between.

St. Louis had 390 goals and 642 assists in 1,134 regular-season games with the Calgary Flames, Tampa Bay Lightning and New York Rangers. He is likely to be inducted into the Hockey Hall of Fame.

In another off-the-ice development, Los Angeles Kings defenseman Slava Voynov pleaded no-contest to domestic violence charges and will serve 90 days in jail with three years of probation.

The Kings released a statement that read: "We believe the legal system has effectively resolved this matter and the punishment is fair and just. Any act of domestic violence is unacceptable."

Voynov could yet be deported to his native Russia - something which will be determined by U.S. Immigration and Customs Enforcement officials.