Determine the emotional tone of the following tweet: "@DevilsAdvcate @ManUtd absolutely boring.M a big Manchester United fan,  nd its really disappointing to see them play in ths dull boring way". Use the provided emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. Respond with the emotions you identify or "neutral or no emotion".
anger, disgust, sadness