how many times has anthony santander and gunnar henderson hit home runs on the same day

Anthony Santander hit no home runs on August 18, 2017.

	NAME	DAY	HR	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Anthony Santander A. Santander	8/18/2017	0	4	1	1	0	0	0	0	0	2	0	0	4	1	0	0	0	0	0	.250	.250	.250	.500
2	Anthony Santander A. Santander	8/19/2017	0	4	0	1	0	0	0	0	0	0	0	0	4	1	0	0	0	0	0	.250	.250	.250	.500
3	Anthony Santander A. Santander	8/25/2017	0	1	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	.000	.000	.000	.000
4	Anthony Santander A. Santander	9/1/2017	0	1	0	0	0	0	0	0	0	1	0	0	1	0	0	0	0	0	0	.000	.000	.000	.000
5	Anthony Santander A. Santander	9/2/2017	0	1	0	0	0	0	0	0	0	1	0	0	1	0	0	0	0	0	0	.000	.000	.000	.000
6	Anthony Santander A. Santander	9/7/2017	0	1	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	.000	.000	.000	.000
7	Anthony Santander A. Santander	9/14/2017	0	2	0	0	0	0	0	0	0	2	0	0	2	0	0	0	0	0	0	.000	.000	.000	.000
8	Anthony Santander A. Santander	9/16/2017	0	2	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.000	.000	.000
9	Anthony Santander A. Santander	9/20/2017	0	1	0	1	1	0	0	0	0	0	0	0	1	2	1	0	0	0	0	1.000	1.000	2.000	3.000
10	Anthony Santander A. Santander	9/26/2017	0	3	0	1	0	0	0	0	0	1	0	0	3	1	0	0	0	0	0	.333	.333	.333	.667
11	Anthony Santander A. Santander	9/27/2017	0	4	0	3	2	0	1	0	0	0	0	0	4	5	2	0	0	0	0	.750	.750	1.250	2.000
12	Anthony Santander A. Santander	9/29/2017	0	3	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0	0	0	.000	.000	.000	.000
13	Anthony Santander A. Santander	9/30/2017	0	3	0	1	0	0	1	0	0	0	0	0	4	1	0	0	1	0	0	.333	.250	.333	.583
14	Anthony Santander A. Santander	3/31/2018	0	3	0	0	0	0	0	1	0	0	0	0	4	0	0	0	0	0	0	.000	.250	.000	.250
15	Anthony Santander A. Santander	4/3/2018	0	4	0	1	1	0	0	0	0	1	0	0	4	2	1	0	0	0	0	.250	.250	.500	.750
16	Anthony Santander A. Santander	4/4/2018	0	4	0	0	0	0	0	0	0	2	0	0	4	0	0	0	0	0	0	.000	.000	.000	.000
17	Anthony Santander A. Santander	4/5/2018	0	3	1	1	1	0	1	1	0	0	1	0	4	2	1	0	0	0	0	.333	.500	.667	1.167
18	Anthony Santander A. Santander	4/6/2018	0	5	0	1	0	0	0	1	0	1	0	0	6	1	0	0	0	0	0	.200	.333	.200	.533
19	Anthony Santander A. Santander	4/7/2018	0	4	0	0	0	0	0	0	0	0	0	0	4	0	0	0	0	0	0	.000	.000	.000	.000
20	Anthony Santander A. Santander	4/8/2018	1	6	1	3	0	0	3	0	0	1	0	0	6	6	1	0	0	0	0	.500	.500	1.000	1.500
21	Anthony Santander A. Santander	4/9/2018	0	4	0	0	0	0	0	0	0	3	0	0	4	0	0	0	0	0	0	.000	.000	.000	.000
22	Anthony Santander A. Santander	4/10/2018	0	3	0	1	0	0	0	0	0	1	0	0	3	1	0	0	0	0	0	.333	.333	.333	.667
23	Anthony Santander A. Santander	4/11/2018	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
24	Anthony Santander A. Santander	4/14/2018	0	3	1	1	1	0	0	0	0	1	0	0	3	2	1	0	0	0	0	.333	.333	.667	1.000
25	Anthony Santander A. Santander	4/15/2018	0	3	0	0	0	0	0	0	0	3	0	0	3	0	0	0	0	0	0	.000	.000	.000	.000