First it happened against Chelsea and then against Liverpool - Man United's win was ruined by a penalty again hehe. It also keeps happening at the late stage of the game. It must be annoying to ETH that it could have been six points instead of just two in the last two matches. It's already within their grasp but the wins keeps slipping away from their hands that way.
A second check by the referee and maybe they would have noticed that They may actually have not been any contact between the Manchester United Defender and the Liverpool player. That was a bad officiating decision that favored Liverpool and gave them one point to be second on the table and just behind by goal difference. Arsenal has the opportunity to win the title now if they can go on to win their remaining games and score many goals while winning the games. Arsenal still has some tough teams to play like Manchester United and Tottenham but they are a strong team and if they have a good mentality and the players do not lose sight of what they have within their grabs they can win the EPL in this very season that the winner of the competition has been very tough to predict.