That's exactly what we need. An injury prone left back.
It's from Catalan newspaper Sport, they're most probably recycling old rumours.
But Grimaldo seems to have left his health issues behind:
12/13 Knee Injury Dec 10, 2012 Dec 21, 2012 11 days 1

12/13 Cruciate Ligament Rupture Feb 23, 2013 Jan 13, 2014 324 days 37

15/16 Muscle Injury Sep 12, 2015 Sep 27, 2015 15 days 3

16/17 Unknown Injury Oct 6, 2016 Oct 15, 2016 9 days 1

16/17 Pubitis Oct 24, 2016 Apr 3, 2017 161 days 32

16/17 Hamstring Injury Jun 15, 2017 Jul 6, 2017 21 days -
17/18 Muscle Injury Aug 6, 2017 Sep 6, 2017 31 days 4

17/18 Minor Knock Nov 1, 2017 Nov 11, 2017 10 days 1

17/18 Knock Nov 19, 2017 Nov 24, 2017 5 days 1

18/19 Hamstring Injury Oct 17, 2018 Oct 21, 2018 4 days 1
https://www.transfermarkt.com/alejandro-grimaldo/verletzungen/spieler/193082