The NFL is having trouble scheduling its planned season-opening game in Baltimore because of a conflict with an already scheduled baseball home game for the Baltimore Orioles. The Ravens, as the defending Super Bowl champions, are in line to host the NFL season opener on a Thursday night, Sept. 5. But the Orioles have a home game scheduled that night against the Chicago White Sox and, with the two stadiums adjacent to one another, the two games cannot be played simultaneously. A person familiar with the situation said Monday that the parties are “trying to work it out” but NFL officials “have not been able to schedule the Ravens at home on Thursday night yet.” The league apparently has ruled out moving the game to Wednesday night because of Rosh Hashanah. The chairman of the NFL’s competition committee, Atlanta Falcons President Rich McKay, said during a conference call with reporters last Thursday that the league was leaving open the possibility of playing the opener on Wednesday night for the second year in a row. But a person familiar with deliberations said last Friday that a Wednesday night opener had been ruled out. The NFL played last season’s opener, hosted by the New York Giants, on a Wednesday night, moving it a day earlier to avoid a conflict with President Barack Obama’s speech at the Democratic National Convention. The defending Super Bowl champion traditionally hosts the season-opening game on the Thursday night before the season’s first Sunday of games.