public IEnumerable<TimelineEventLongoMatch> EventsByTeam(SportsTeam team)
{
var timelineEventsLongomatch = new ObservableCollection<TimelineEventLongoMatch> ();
foreach (var timeLineEvent in Timeline) {
timelineEventsLongomatch.Add (timeLineEvent as TimelineEventLongoMatch);
}
return timelineEventsLongomatch.Where (e => e.Teams.Contains (team) || e.Players.Intersect (team.List).Any ());
}