Justin Upton is joining older brother B.J. Upton in a new-look Braves outfield he expects to be called the best in baseball. Arizona traded Justin to Atlanta in a seven-player deal Thursday that sent former All-Star infielder Martin Prado to the Diamondbacks. The Upton brothers join right fielder Jason Heyward, who won a Gold Glove in 2012, in an outfield packed with power and speed. ‘‘If we push ourselves to the next level, I feel with the extra push from each other there’s no question we can be the best outfield in baseball,’’ Justin Upton said in a telephone interview. ‘‘I'm not going to give us that label until we prove it.’’ The Braves, who also get third baseman Chris Johnson, are giving up one of their top pitching prospects, Randall Delgado, and three minor leaguers: righthander Zeke Spruill, shortstop Nick Ahmed, and first baseman Brandon Drury . . . The entrance to the Cathedral Basilica in St. Louis looked more like that of a Cardinals game, just the way Stan Musial would have liked it. Thousands of fans turned out for Musial’s public visitation at the ornate Roman Catholic church, many of them bundled up against the bitter cold in red Cardinals jackets. Musial, a 24-time All-Star who remained a beloved figure in his adopted hometown a half-century after his playing career ended, died Saturday after years of declining health. He was 92 . . . The Reds invited 22-year-old outfielder Billy Hamilton to spring training. Hamilton set a professional record with 155 steals last season, which he split between Single A and Double A teams . . . Free agent outfielder Nyjer Morgan signed with the Yokohama DeNA BayStars of Japan’s Central League for one year and $1.6 million.