Question: What were the nicknames of the player whose hithitting streak Ken Keltner helped to end ?

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Goalsneak: A goalsneak is an Australian rules football player whose job is to kick goals in a game.  It usually describes a forward player, particularly a player in a forward pocket, who is small and nimble.  A goalsneak may use his pace and cunning to snatch a goal after a running play where a larger player would use brute strength and height to mark the ball.

Joe Orsulak: Joseph Michael Orsulak (born May 31, 1962) is a former Major League Baseball player whose career spanned 1983 to 1997, with the Pittsburgh Pirates, Baltimore Orioles, New York Mets, Florida Marlins, and Montreal Expos.  Orsulak, who threw and batted left-handed, played mostly in the outfield, although he played some games at first base.  On the basepaths, he had better than average speed, until a 1987 knee injury slowed him down.  His strong arm helped him lead the league, in 1991, in outfield assists.  In 1992 he made the first out at the Orioles' new Camden Yards ballpark, going on to lead the team that year in batting average.  Despite his relatively long career (with five major league clubs), he never played in the post-season in the Majors.

Roger Clemens' MVP Baseball: Roger Clemens' MVP Baseball is a baseball video game released in North America during the years of 1991 and 1992 for the NES, Game Boy, Super NES, and Sega Genesis.  All of the ballplayers have the likenesses and abilities of the 1991 Major League Baseball players they represent.  However, since the game is not licensed by the Major League Baseball Players Association, the only player whose name appears in the game is, of course, AL Cy Young Award Winner Roger Clemens.  The 26 teams featured in the game correspond to the 1991 MLB teams as well, though team nicknames have been changed due to the lack of an MLB license as well.

Mark Merchant: Mark Alan Merchant (born January 23, 1969) is a former professional baseball player whose career spanned ten seasons in minor league baseball, parts of one season in the Northern League, and one season in the Atlantic League of Professional Baseball.  A highly rated prospect out of Oviedo High School, Merchant was drafted by the Pittsburgh Pirates with the second overall selection after Ken Griffey Jr. in the 1987 Major League Baseball draft.  During the 1989 season, the Pirates traded Merchant to the Seattle Mariners as a part of a five-player deal.

Happy Families: Happy Families is a traditional card game, usually with a specially made set of picture cards, featuring illustrations of fictional families of four, most often based on occupation types.  The object of the game is to collect complete families.  The player whose turn it is asks another player for a specific card from the same family as a card that the player already has.  If the asked player has the card, he gives it to the requester and the requester can then ask any player for another card.  If the asked player does not have the card, it becomes his turn and he asks another player for a specific card.  Play continues in this way until no families are separated among different players.  The player with the most cards wins.  One of the rules states that a player cannot ask for a certain card to deceive any player if he does not have a card in the set he is asking for.  The game can be adapted for use with an ordinary set of playing cards (see Go Fish).

Mark Covert: Mark Covert (born November 17, 1950) is an American runner.  He is believed to maintain the second-longest streak of running every day in the world.  Covert's running streak began on July 23, 1968 just after his senior year at Burbank High School in Burbank, California, and continued for exactly 45 years.  Due to a chronic foot injury, Covert announced that he would end his streak after exactly 45 years on July 23, 2013 and he did as promised.  His is the longest streak recorded by the United States Running Streak Association, followed closely by Jon Sutherland, who began less than a year after Covert.  However, British runner Ron Hill is believed to have the longest continuous streak.

Penney's game: Penney's game, named after its inventor Walter Penney, is a binary (head/tail) sequence generating game between two players.  Player A selects a sequence of heads and tails (of length 3 or larger), and shows this sequence to player B. Player B then selects another sequence of heads and tails of the same length.  Subsequently, a fair coin is tossed until either player A's or player B's sequence appears as a consecutive subsequence of the coin toss outcomes.  The player whose sequence appears first wins.

History of baseball team nicknames: This is a summary of the evolution of nicknames of the current Major League Baseball teams, and also of selected former major and minor league teams whose nicknames were influential, long-lasting, or both.  The sources of the nicknames included club names, team colors, and city symbols.  The nicknames have sometimes been dubbed by the media, other times through conscious marketing by the team, or sometimes a little of both.

Ken Keltner: Kenneth Frederick Keltner (October 31, 1916 – December 12, 1991) was an American professional baseball player.  He played almost his entire Major League Baseball career as a third baseman with the Cleveland Indians, until his final season when he played 13 games for the Boston Red Sox.  He batted and threw right-handed.  A seven-time All-Star, Keltner is remembered for being one of the best fielding third basemen in the 1940s and for helping to end Joe DiMaggio's 56-game hitting streak on July 17, 1941.

Joe DiMaggio: Joseph Paul DiMaggio (November 25, 1914 – March 8, 1999), nicknamed "Joltin' Joe" and "The Yankee Clipper", was an American Major League Baseball center fielder who played his entire 13-year career for the New York Yankees.  He is perhaps best known for his 56-game hitting streak (May 15 – July 16, 1941), a record that still stands.

Supporting paragraphs: Ken Keltner Joe DiMaggio
Answer: Joltin' Joe" and "The Yankee Clipper