Austrian tennis star Dominic Thiem has registered yet another loss at the ongoing Indian Wells Masters in California. This has left fans heartbroken as he has been unable to recreate title-winning results from earlier in his career.Thiem fell to France's Adrian Mannarino in the first round of the Indian Wells Masters in three sets 4-6, 6-4,7-6 (5) on Friday, March 10. He has only been able to win one of the nine matches he has played this year.Thiem won the 2020 US Open after an epic five-set match against Germany's Alexander Zverev. However, since mid-2021, the Austrian has been struggling with a right-hand wrist injury and has not been able to produce the same level of strokes or results.Following his Indian Wells Masters loss, fans took to Twitter to share their observations of Thiem's performance."Dominic Thiem’s forehand late 2019-2020 was the biggest and most devastating groundstroke weapon on the ATP Tour. No exaggeration, now it’s a total shell of what it was and it’s really tough to watch him unable to sort it out," one fan tweeted.Vansh@vanshv2kDominic Thiem’s forehand late 2019-2020 was the biggest and most devastating groundstroke weapon on the ATP Tour. No exaggeration, now it’s a total shell of what it was and it’s really tough to watch him unable to sort it out.764Dominic Thiem’s forehand late 2019-2020 was the biggest and most devastating groundstroke weapon on the ATP Tour. No exaggeration, now it’s a total shell of what it was and it’s really tough to watch him unable to sort it out."His comeback started over a year ago and there is no improvement in his forehand i think the fh will never come back like before," another fan tweeted.Alex@AlexMV1906@vanshv2k his comeback started over a year ago and there is no improvement in his forehand i think the fh will never come back like before2@vanshv2k his comeback started over a year ago and there is no improvement in his forehand i think the fh will never come back like beforeHere are some more reactions to Thiem's first-round loss:Ann🦩@maisonpqThat was heartbreaking on another level actually, god domi 15That was heartbreaking on another level actually, god domi 💔hika✨@hikar1_y@maisonpq i caught the tiebreak. brutal, but he was very close🥺5@maisonpq i caught the tiebreak. brutal, but he was very close🥺🙏The Boomerang Break@BoomerangBreak@maisonpq I can't take it anymore 1@maisonpq I can't take it anymore 😭😭😭The Boomerang Break@BoomerangBreak@vanshv2k It's not that it's misfiring. It's mechanically different, and the technique is not conducive to power. He needs some time off and someone like the person Sabalenka brought in to fix his mechanics. Atm his strategy is "keep plugging away and hope something magically changes."11@vanshv2k It's not that it's misfiring. It's mechanically different, and the technique is not conducive to power. He needs some time off and someone like the person Sabalenka brought in to fix his mechanics. Atm his strategy is "keep plugging away and hope something magically changes."Steph Redford 🎾🚲🏳️‍🌈@reds10001@vanshv2k Wow did he look shaky. His serve used to be a weapon too. You can see the lack of confidence@vanshv2k Wow did he look shaky. His serve used to be a weapon too. You can see the lack of confidenceBambala@Bambala93722683@vanshv2k After winning USO completely fell apart … my God … what a shame@vanshv2k After winning USO completely fell apart … my God … what a shameWalker 🏳️‍⚧️@rafolejan@vanshv2k It’s truly a sad state of affairs when Adrian Mannarino has a more effective forehand than Thiem1@vanshv2k It’s truly a sad state of affairs when Adrian Mannarino has a more effective forehand than ThiemDJ@DarrenTheHero1@vanshv2k That's the Problem he needs to accept his forehand for what it is now and not what it used to be.@vanshv2k That's the Problem he needs to accept his forehand for what it is now and not what it used to be.pie pineda@pieatot@vanshv2k Is it really mechanics or mental or a bit of both?@vanshv2k Is it really mechanics or mental or a bit of both?Joe from Jersey@Joe4Jersey@vanshv2k His house of cards collapsed@vanshv2k His house of cards collapsedBiLateral@Bi08101657@vanshv2k Even Benoit Paire with a weak forehand wound beat Thiem today.@vanshv2k Even Benoit Paire with a weak forehand wound beat Thiem today.A look at the best moments of Dominic Thiem's career so farDominic Thiem with his 2020 US Open trophyAustrian tennis star Dominic Thiem turned pro in 2011 and went on to break into the Top 100 in 2014. In 2015, Thiem won his first ATP title, the Open de Nice Cote d'Azur, an ATP 250 tournament.The following year, Thiem went on to reach his first Grand Slam semi-final at the French Open where we went down against Serbia's Novak Djokovic in straight sets. This run at the French Open led to him becoming a Top 10 player.In 2019, Thiem won his first ATP Masters 1000 title at the BNP Paribas Open, where he defeated Swiss legend Roger Federer.The biggest highlight of Thiem's career came at the 2020 US Open, where he defeated Germany's Alexander Zverev after being two sets down 2-6, 4-6, 6-4, 6-3, 7-6. This marked the first time a player born in the 1990s won a Major title.