Barca, Juve, City... Which Champions League teams are still on for the treble?

There have only been eight trebles of league, cup and UEFA Champions League. Anyone for a ninth?

Eight teams and seven different clubs have claimed 'the treble' over the years, winning the European Cup, league title and biggest domestic cup in the same campaign:

1966/67: Celtic

1971/72: Ajax

1987/88: PSV Eindhoven

1998/99: Manchester United

2008/09: Barcelona

2009/10: Internazionale Milano

2012/13: Bayern München

2014/15: Barcelona

Which clubs are still in the running to join that elite band this season or even, in Manchester City's case, claim a quadruple?

Ajax

UCL: Quarter-finals

League: 2nd, five points behind PSV Eindhoven

Cup: Final v Willem II, 5 May (Rotterdam)

Barcelona

UCL: Last 16, 0-0 v Lyon, second leg 13 March (h)

League: 1st, seven points ahead of Atlético

Cup: Final v Valencia, 25 May (Seville)

Bayern München

UCL: Last 16, 0-0 v Liverpool, second leg 13 March (h)

League: 2nd, level on points with Dortmund

Cup: Quarter-final v Heidenheim, 3 April (h)

Juventus

UCL: Last 16, 0-2 v Atlético, second leg 12 March (h)

League: 1st, 16 points ahead of Napoli

Cup: Out, lost v Atalanta in quarter-finals

Lyon

UCL: Last 16, 0-0 v Barcelona, second leg 13 March (a)

League: 3rd, 22 points behind Paris

Cup: Semi-final v Rennes, 2/3 April (h)

League Cup: Out, lost v Strasbourg in quarter-finals

Manchester City

UCL: Last 16, 3-2 v Schalke, second leg 12 March (h)

League: 1st, one point ahead of Liverpool

Cup: Quarter-final v Swansea City, 16 March (a)

League Cup: Winners

Manchester United

UCL: Last 16, 0-2 v Paris, second leg 6 March (a)

League: 4th, 13 points behind Manchester City

Cup: Quarter-final v Wolverhampton Wanderers, 16 March (a)

League Cup: Out, lost v Derby in last 32

Paris Saint-Germain

UCL: Last 16, 2-0 v Manchester United, second leg 6 March (h)

League: 1st, 17 points ahead of LOSC Lille

Cup: Semi-final v Vitré or Nantes, 2/3 April

League Cup: Out, lost v Guingamp in quarter-finals

Porto

UCL: Last 16, 1-2 v Roma, second leg 6 March (h)

League: 2nd, two points behind Benfica

Cup: Semi-final 3-0 v Braga, second leg 3 April (a)

League Cup: Out, lost v Sporting CP in final

Key

Won competition

Can still win competition

Out of contention

*League Cups are played in a minority of countries, including England, France and Portugal. Celtic, in 1966/67, are the only team to have won a quadruple of European Cup, domestic league, domestic cup and domestic league cup.

Standings accurate up to and including Tuesday 5 March