Since 2009-10, Bradley Barcola has the most expected goals over goals in the Champions League, with a differential of 6.89.

Interpreted as:

biggest xg underperformers by a player since 2010

	NAME	xG - G	xG	G	Rating	M	MIN	START	G/M	A	G+A	PK	FK	SH	SOT	WOOD	TCH	TCH-BOX	OFF
1	Bradley Barcola B. Barcola	6.89	10.89	4	6.58	33	2,007	25	0.12	7	11	0	0	59	24	3	1,179	212	10
2	Mehdi Taremi M. Taremi	4.82	14.82	10	6.68	38	2,511	26	0.26	9	19	3	0	80	29	2	1,042	156	9
3	Diogo Jota D. Jota	3.99	4.99	1	6.43	21	1,078	13	0.05	5	6	0	0	28	11	0	595	78	6
4	Ilkay Gündogan I. Gündogan	3.83	6.83	3	7.47	47	3,308	37	0.06	8	11	0	0	66	20	3	2,873	117	3
5	Luuk de Jong L. de Jong	3.35	8.35	5	6.46	22	1,715	20	0.23	1	6	2	0	54	18	1	707	109	4
6	Youssoufa Moukoko Y. Moukoko	3.19	3.19	0	6.50	16	563	6	0.00	2	2	0	0	18	8	1	219	28	4
7	Mauro Icardi M. Icardi	3.11	5.11	2	5.96	15	751	7	0.13	0	2	1	0	30	6	2	196	46	10
8	Federico Dimarco F. Dimarco	3.03	4.03	1	6.80	41	2,406	29	0.02	6	7	0	0	52	14	1	1,806	74	5
9	Theo Hernández T. Hernández	2.91	2.91	0	6.82	32	2,798	32	0.00	2	2	0	0	39	7	5	2,175	50	7
10	Kasper Waarst Høgh K. Waarst Høgh	2.90	2.90	0	5.73	6	445	6	0.00	1	1	0	0	16	5	1	137	20	5
11	Noa Lang N. Lang	2.86	4.86	2	6.65	27	1,892	22	0.07	3	5	1	0	48	20	0	1,300	97	12
12	Jamal Musiala J. Musiala	2.85	8.85	6	7.41	40	2,732	32	0.15	7	13	0	0	76	25	5	1,856	216	4
13	Pape Chérif Ndiaye P. Chérif Ndiaye	2.81	5.81	3	6.64	14	931	12	0.21	1	4	1	0	18	9	0	353	48	11
14	Kyōgo Furuhashi K. Furuhashi	2.70	5.70	3	6.33	19	1,282	17	0.16	1	4	0	0	31	13	0	265	48	5
15	Marcel Sabitzer M. Sabitzer	2.68	3.68	1	6.72	39	2,522	29	0.03	7	8	0	0	46	16	0	1,482	62	2
16	Olivier Giroud O. Giroud	2.64	8.64	6	6.35	23	1,712	21	0.26	4	10	2	0	44	26	0	601	86	17
17	Joshua Kimmich J. Kimmich	2.57	4.57	2	7.69	49	4,382	49	0.04	9	11	1	0	61	26	1	4,832	40	1
18	Karim Konaté K. Konaté	2.54	4.54	2	6.40	10	556	7	0.20	0	2	0	0	23	7	1	209	39	5
19	Hugo Ekitike H. Ekitike	2.40	3.40	1	6.63	10	459	5	0.10	0	1	0	0	20	9	0	205	49	2
20	Niclas Füllkrug N. Füllkrug	2.39	5.39	3	6.66	13	1,042	12	0.23	2	5	0	0	35	11	2	400	63	9
21	Alexander Sørloth A. Sørloth	2.38	3.38	1	6.56	13	488	4	0.08	1	2	0	0	18	8	0	222	38	5
22	Khvicha Kvaratskhelia K. Kvaratskhelia	2.36	9.36	7	6.75	31	2,502	30	0.23	9	16	1	0	96	32	1	1,799	198	2
23	Leon Goretzka L. Goretzka	2.26	5.26	3	7.33	42	2,739	30	0.07	6	9	0	0	58	16	2	2,210	62	1
24	Ollie Watkins O. Watkins	2.19	3.19	1	6.16	12	697	9	0.08	4	5	0	0	18	8	0	231	44	5
25	Francesco Esposito F. Esposito	2.17	3.17	1	6.27	5	293	3	0.20	2	3	0	0	14	3	0	139	23	1