This really is a tough one to call this evening.
On paper, you would not think Joyce has the regular big scoring visits to stay in touch with The Asp.
That said, when you can finish as well as Joyce, you can really punish a confidence-based player like Aspinall and crush his game in the process.
We now know who will be contesting the final this evening.
One thing we can be sure of, we will have a completely new winer of a European Tour event in Germany.
The players will have a slight break so The Asp does not have to play back-to-back games.
It promises to be an interesting final.
The Asp is full of confidence after that 170 checkout.
He gets into a position to look at a double first in this one.
With 35 remaining, he hits single 3 followed by double 16.
What a win!
What have we just seen here.
Anderson set himself up for tops with Aspinall on 170.
The Asp hits two treble 20s and then the bull for the 'big fish' to take the leg and draw level.
We are going to a deciding leg.
Aspinall intends on making Anderson work for this if he is to lose.
He holds his throw, now needing another two legs for victory.
This match is finely poised and The Asp cannot afford to drop one.
Anderson is looking at his confident best.
Considering he had not won a match on the European Tour for two years, he is back in the groove now.
He holds his throw to move within one leg of victory.
All the pressure is on The Asp now.
He manages to hold his throw and you see how much it means to him as he clinches his fist.
This match is still in the balance.
With 76 remaining, Anderson hits single 5 followed by treble 15.
Anderson hits double 10 with his last dart to take the leg.
That one hurt The Asp judging by his reaction.
The Asp is managing to hold his throw which is crucial.
He cannot afford another break from Anderson.
However, he could do with a break himself if he has any hope of making the final.
Anderson is not willing to give this opportunity up.
With 68 remaining, he hits treble 20, followed by double 4.
He piles the pressure back on The Asp holding his throw.
Aspinall digs deep and claws back a leg.
What a bizarre finish from the Englishman.
He hits single 20, bullseye and double 16 to move to within one leg of Anderson.
Anderson looks like he wants to be in tonight's final.
He is banging in the treble 20s so often now.
The Scot wins the leg and moves into a two-leg lead.
The Asp loses his aim for the trebles.
Anderson hits another maximum and has plenty of time to take on his double.
He hits double 2 to move into the lead for the first time.
Anderson follows suit with a maximum of his own.
Aspinall misses two darts at a double to break.
The Scot punishes him, hitting double tops with his first dart.
The Asp starts with a maximum from his first visit to the oche.
Anderson cannot find the same consistency.
Aspinall hits another maximum and follows up hitting double 16 to secure the first leg.
Onto our next semi-final to see who plays Ryan Joyce.
Nathan Aspinall looked in great form as he dispatched world number one Luke Humphries.
Gary Anderson showed his never say die attitude to come from behind to win.
What an end to the match.
Joyce has 89 remaining and with his first dart accidentally hits single 7.
He then goes for the bull and secures the match with double 16 with his last dart.
Incredible stuff.
A twelve-darter from MVG secures the leg.
With 92 remaining, he hits treble 20 but misses double 16.
Van Gerwen hits double 16 with his last dart to give him some hope.
Just as it looks like MVG is edging this leg, Joyce steps up to the plate.
With 110 remaining, he takes out double tops with his last dart.
He is now one leg away from victory and a place in the final.
MVG looks at a loss with his own game.
He hits a maximum and just raises his eyebrows.
The Dutchman does the same as he hits his double to move within one leg of Joyce again.
Unbelievable stuff here.
With Joyce still a long way off, MVG misses two darts at the double.
Joyce almost gets a 167 out, narrowly missing the bull.
Van Gerwen then misses three darts at a double.
The Englishman seals the double to move into a two-leg lead.
Just as the Dutchman felt he was turning the tide, Joyce fights back.
He hits double 7 to move into the lead once again.
Joyce needs to hold his throw to open up a lead here.
There is nothing to separate these two players.
MVG hits double tops to draw the match level.
It is impossible to predict a winner in this one.