In the current three-division structure, each team plays 19 games against each of its four divisional opponents. It plays one home series and one away series, amounting to six or seven games, against the 10 other teams in its league. A team also plays one of the divisions in the other league, rotating each year, with two opponents in a three-game home series, two in a three-game away series, and one with four games split between home and away. Furthermore, each team has an interleague "natural rival" (in many cases its counterpart in the same metro area) with which it plays two home games and two away games each year.